+ <!--
+Author-Title-Subject 1036 An author or a title or a 1XX, 2XX, 4XX,
+ subject. 6XX, 7XX, 8XX
+
+ Note: When the Use attribute is Author-name-and-title (1000)
+ the term contains both an author name and a title. When the
+ Use attribute is Author-Title-Subject (1036), the term
+ contains an author name or a title or a subject.
+
+ -->
+ <!--
+Body of text 1010 Used in full-text searching to
+ indicate that the term is to
+ be searched only in that
+ portion of the record that the
+ target considers the body of
+ the text, as opposed to some
+ other discriminated part such
+ as a headline, title, or
+ abstract.
+
+ -->
+ <!--
+Classification-Bliss 15 A classification number from
+ the Bliss Classification,
+ developed by Henry Evelyn
+ Bliss.
+
+ -->
+ <!--
+Classification-Dewey 13 A classification number from 082
+ the Dewey Decimal
+ Classification, developed by
+ Melvyl Dewey.
+
+ -->
+ <!--
+Classification- 50 A classification number 086
+government-publication assigned to a government
+ document by a government
+ agency at any level (e.g.,
+ state, national,
+ international).
+
+ -->
+ <!--
+Classification-LC 16 A classification number from 050
+ the US Library of Congress
+ Classification.
+
+ -->
+ <!--
+Classification-local 20 A local classification
+ number from a system not
+ specified elsewhere in this
+ list of attributes.
+
+ -->
+ <!--
+Classification-NAL 18 A classification number from 070
+ the US National Agriculture
+ Library Classification.
+
+ -->
+ <!--
+Classification-NLM 17 A classification number from 060
+ the US National Library of
+ Medicine Classification.
+
+ -->
+ <!--
+Classification-MOS 19 A classification number from
+ Mathematics Subject
+ Classification, compiled
+ in the Editorial Offices of
+ Mathematical Reviews and
+ Zentralblatt fur Mathematik.
+
+ -->
+ <!--
+Classification-UDC 14 A classification number from 080
+ Universal Decimal
+ Classification, a system based
+ on the Dewey Decimal
+ Classification.
+
+ -->
+ <!--
+Code-bib-level 1021 A one-character alphabetic Leader/07
+ code indicating the
+ bibliographic level such as
+ monograph, serial or collection
+ of the record.
+
+ -->
+ <!--
+Code-geographic-area 55 A code that indicates the 043
+ geographic area(s) that appear
+ or are implied in the headings
+ assigned to the item during
+ cataloging.
+
+ -->
+ <!--
+Code-geographic- 1022 A code that represents the 052
+class geographic area and if
+ applicable the geographic
+ subarea covered by an item.
+ The codes are derived from
+ the LC Classification-Class G
+ and the expanded Cutter number
+ list.
+
+ -->
+ <!--
+Code-institution 56 An authoritative-agency 040, 852$a
+ symbol for an institution
+ that is the source of the
+ record or the holding
+ location. The code space is
+ defined by the target.
+
+ -->
+ <!--
+Code-language 54 A code that indicates the 008/35-37, 041
+ language of the item.
+ The codes are defined by the
+ target.
+
+ -->
+ <!--
+Code-map-scale 1024 Coded form of cartographic 034
+ mathematical data, including
+ scale, projection and/or
+ coordinates related to the
+ item.
+
+ -->
+ <!--
+Code-microform- 61 The code specifying the 007/11
+generation generation of a microform.
+
+ -->
+ <!--
+Code-record-type 1001 A code that specifies the Leader/06
+ characteristics and defines
+ the components of the record.
+ The codes are target-specific.
+
+ -->
+ <!--
+Concept-reference 1015 Used within Z39.50-1988;
+ included here for historical
+ reasons but its use is
+ deprecated.
+
+ -->
+ <!--
+Concept-text 1014 Used within Z39.50-1988;
+ included here for historical
+ reasons but its use is
+ deprecated.
+
+ -->
+ <!--
+Content-type 1034 The type of materials derived value
+ contained in the item or from 008/24-27
+ publication. For example:
+ review, catalog, encyclopedia,
+ directory.
+
+ -->
+ <!--
+Control number-BNB 10 Character string that uniquely 015
+ identifies a record in the
+ British National Bibliography.
+
+ -->
+ <!--
+Control number-BNF 11 Character string that uniquely 015
+ identifies a record in the
+ Bibliotheque Nationale Francais.
+
+ -->
+ <!--
+Control number-DB 52 Character string that uniquely 015
+ identifies a record in the
+ Deutsche Bibliothek.
+
+ -->
+ <!--
+Control number-LC 9 Character string that uniquely 010, 011
+ identifies a record in the
+ Library of Congress database.
+
+ -->
+ <!--
+Control number-local 12 Character string that uniquely 001, 035
+ identifies a record in a local
+ system (i.e., any system that
+ is not one of the four listed
+ above).
+
+ -->
+ <!--
+Date 30 The point of time at which 005, 008/00-05,
+ a transaction or event 008/07-10, 260$c,
+ takes place. 008/11-14, 033,etc.
+
+ -->
+ <!--
+Date-publication 31 The date (usually year) in 008/07-10, 260$c
+ which a document is published. 046, 533$d
+
+ -->
+ <!--
+Date-acquisition 32 The date when a document was 541$d
+ acquired.
+
+ -->
+ <!--
+Date/time added to 1011 The date and time that a 008/00-05
+database record was added to the
+ database.
+
+ -->
+ <!--
+Date/time last 1012 The date and time a record 005
+modified was last updated.
+
+ -->
+ <!--
+Identifier 1013 Used in full-text searching
+authority/format to indicate to the target
+ system the format of the
+ document that should be
+ returned to the originating
+ system. The attribute carries
+ not only the format code, but
+ also the authority (e.g.,
+ system) that assigned that
+ code.
+
+ -->
+ <!--
+Identifier-CODEN 60 A six-character, unique, 030
+ alphanumeric code assigned
+ to serial and monographic
+ publications by the CODEN
+ section of the Chemical
+ Abstracts Service.
+
+ -->
+ <!--
+Identifier-document 1032 A persistent identifier, or
+ Doc-ID, assigned by a server,
+ that uniquely identifies a
+ document on that server.
+
+ -->
+ <!--
+Identifier-ISBN 7 International Standard Book 020
+ Number - internationally
+ agreed upon number that
+ identifies a book uniquely.
+ Cf. ANSI/NISO Z39.21 and
+ ISO 2108.
+
+ -->
+ <xsl:template name="ISBN">
+ <xsl:for-each select="marc:datafield[@tag='020']/marc:subfield[@code='a']">
+ <z:index name="ISBN" type="n">