APA (7th ed.) Citation

Morris, P. A. (1951). A field guide to the shells of our Atlantic and Gulf coasts.

Chicago Style (17th ed.) Citation

Morris, Percy A. A Field Guide to the Shells of Our Atlantic and Gulf Coasts. Boston, Houghton Mifflin, 1951.

MLA (9th ed.) Citation

Morris, Percy A. A Field Guide to the Shells of Our Atlantic and Gulf Coasts. 1951.