Running title: Library of Congress subject headings in microform
Washington : Library of Congress,
Began with Jan./Mar. 1976.
Each issue is cumulative. Represents the latest edition of Library of Congress subject headings, and those headings established subsequently through the current quarter. Introduction is not available in microform; it is available only in printed form. Description based on: Mar. 1977.
RBC c. 1: Currently received;SILS Library also has printed editions TO DATE