Madge, S., & Burn, H. (1988). Waterfowl: An identification guide to the ducks, geese, and swans of the world. Houghton Mifflin.
Chicago Style (17th ed.) CitationMadge, Steve, and Hilary Burn. Waterfowl: An Identification Guide to the Ducks, Geese, and Swans of the World. Boston: Houghton Mifflin, 1988.
MLA (9th ed.) CitationMadge, Steve, and Hilary Burn. Waterfowl: An Identification Guide to the Ducks, Geese, and Swans of the World. Houghton Mifflin, 1988.
Warning: These citations may not always be 100% accurate.