Morris, P. A. (1986). Shells of the Atlantic and Gulf coasts and the West Indies. 3rd ed. The Easton Press.
Chicago-referens (17:e uppl.)Morris, Percy A. Shells of the Atlantic and Gulf Coasts and the West Indies. 3rd Ed. Norwalk, Connecticut: The Easton Press, 1986.
MLA-referens (9:e uppl.)Morris, Percy A. Shells of the Atlantic and Gulf Coasts and the West Indies. 3rd Ed. The Easton Press, 1986.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.