Cita APA

Williams, W. D. 1. (1970). A revision of North American epigean species of Asellus (Crustacea: Isopoda). Washington: Smithsonian Institution Press.

Citación estilo Chicago

Williams, William David 1936-2002. A Revision of North American Epigean Species of Asellus (Crustacea: Isopoda). Washington: Smithsonian Institution Press, 1970.

Cita MLA

Williams, William David 1936-2002. A Revision of North American Epigean Species of Asellus (Crustacea: Isopoda). Washington: Smithsonian Institution Press, 1970.