Cita APA

Madge, S. (1988). Waterfowl: An identification guide to the ducks, geese and swans of the world. Boston: Houghton Mifflin Company.

Citación estilo Chicago

Madge, Steve. Waterfowl: An Identification Guide to the Ducks, Geese and Swans of the World. Boston: Houghton Mifflin Company, 1988.

Cita MLA

Madge, Steve. Waterfowl: An Identification Guide to the Ducks, Geese and Swans of the World. Boston: Houghton Mifflin Company, 1988.