APA (7th ed.) Citation

Abbott, R. T., & Morris, P. A. (1995). A field guide to shells: Atlantic and Gulf coasts and the West Indies (4th ed.). Houghton Mifflin.

Chicago Style (17th ed.) Citation

Abbott, R. Tucker, and Percy A. Morris. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. 4th ed. Boston: Houghton Mifflin, 1995.

MLA (9th ed.) Citation

Abbott, R. Tucker, and Percy A. Morris. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. 4th ed. Houghton Mifflin, 1995.