Library of Congress classification schedules: a cumulation of additions and changes ... :
Class P, philology & literature, subclasses P-PM. Supplement, Index to languages and dialects.

APA Citation

Gale Research Company., Library of Congress. Subject Cataloging Division. (1971). Library of Congress classification schedules: a cumulation of additions and changes ...: Class P, philology & literature, subclasses P-PM. Supplement, Index to languages and dialects. Detroit: Gale Research Co..

MLA Citation

Gale Research Company, and Library of Congress. Subject Cataloging Division. Library of Congress Classification Schedules: a Cumulation of Additions And Changes ...: Class P, Philology & Literature, Subclasses P-PM. Supplement, Index to Languages And Dialects. Detroit: Gale Research Co., 1971.