Classification.
Outline scheme of classes. Reprint of revision of 1920.
APA Citation
Library of Congress. Classification Division. (1934). Classification: Outline scheme of classes. Reprint of revision of 1920. Washington: U.S. Govt. print. of.
MLA Citation
Library of Congress. Classification Division. Classification: Outline Scheme of Classes. Reprint of Revision of 1920. Washington: U.S. Govt. print. of, 1934.
Warning: These citations may not always be complete (especially for serials).