APA (7th ed.) Citation

May, R. S. (1975). Procedural Guide to Cataloging and Indexing Historical Collections.

Chicago Style (17th ed.) Citation

May, Ruby S. Procedural Guide to Cataloging and Indexing Historical Collections. 1975.

MLA (9th ed.) Citation

May, Ruby S. Procedural Guide to Cataloging and Indexing Historical Collections. 1975.

Warning: These citations may not always be 100% accurate.