Library of Congress Classification schedules, a cumulation of additions and changes, 1971-1972. Class L. Education - U. S. Library of Congress. Subject Cataloging Division; Savage, Helen; Gale Research Company; Library of Congress. Subject Cataloging Division (Detroit, Michigan Gale Research Company, 1973)
A cumulation of the additions and changes to Classification: Class L, Education, third edition, Washington, 1951; consists of the revisions published in L.C. Classification--Additions and Changes, from No. 161 (Jan.-Mar., 1971) through No. 168 (Oct.-Dec., 1972).
Includes index.
Keywords: Classification, Library of Congress; Classification -- Books -- Education