APA (7th ed.) Citation

Guppy, H. (1947). Rules for the cataloging of incunabula. Library Association.

Chicago Style (17th ed.) Citation

Guppy, Henry. Rules for the Cataloging of Incunabula. London: Library Association, 1947.

MLA (9th ed.) Citation

Guppy, Henry. Rules for the Cataloging of Incunabula. Library Association, 1947.

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