Vizine-Goetz, D.; Markey, K.: Characteristics of subject heading records in the machine-readable Library of Congress Subject Headings (1989)
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- Abstract
- Since April 1986 the LoC has been distributing the machine-readable LSCH-mr in the form of a cumulative master tape and weekly tape update service. ... This paper details the characteristics of authority records for subject headings (MARC tag 150) ...