Gould, J., & Rutgers, A. (1966). Birds of Europe. Methuen.
Chicago Style (17th ed.) CitationGould, John, and A. Rutgers. Birds of Europe. London: Methuen, 1966.
MLA (9th ed.) CitationGould, John, and A. Rutgers. Birds of Europe. Methuen, 1966.
Warning: These citations may not always be 100% accurate.