[1] It is maintained by the Technical Committee for Information and Documentation (TC 9846).
In the late 1960s the MARC format was developed under the direction of Henriette Avram at the Library of Congress to encode the information printed on library cards.
The 1981 version of the standard was titled Documentation—Format for bibliographic information interchange on magnetic tape.
[3] The latest edition of that standard is ANSI/NISO Z39.2-1994 (R2016)[4] (ISSN 1041-5653).
[1] An ISO 2709 record has four sections: Note that although tags are often displayed as labels on bibliographic fields and each bibliographic field has an associated tag, the tags are stored in the directory not in the bibliographic field.