Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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