Classification. Class Z: Bibliography and library science.

APA Citation

Library of Congress. Classification Division., Skinneer, E. Jane., Starr, H. Knowlton., Martel, C. (1927). Classification. Class Z: Bibliography and library science. 3d ed. Washington: U. S. Govt. print. off..

MLA Citation

Library of Congress. Classification Division, Eliza Jane Skinneer, Helen Knowlton Starr, and Charles Martel. Classification. Class Z: Bibliography And Library Science. 3d ed. Washington: U. S. Govt. print. off., 1927.