Madge, S. (1988). Waterfowl: An identification guide to the ducks, geese and swans of the world. Boston: Houghton Mifflin Company.
Chicago Style CitationMadge, Steve. Waterfowl: An Identification Guide to the Ducks, Geese and Swans of the World. Boston: Houghton Mifflin Company, 1988.
MLA CitationMadge, Steve. Waterfowl: An Identification Guide to the Ducks, Geese and Swans of the World. Boston: Houghton Mifflin Company, 1988.
Warning: These citations may not always be 100% accurate.