Chappell, W. A. (1982). Aspects of the energetics of greater scaup (Aythya marila) and lesser scaup (A. affinis) during migration. McGill University.
Chicago Style (17th ed.) CitationChappell, William A. Aspects of the Energetics of Greater Scaup (Aythya Marila) and Lesser Scaup (A. Affinis) During Migration. McGill University, 1982.
MLA (9th ed.) CitationChappell, William A. Aspects of the Energetics of Greater Scaup (Aythya Marila) and Lesser Scaup (A. Affinis) During Migration. McGill University, 1982.
Warning: These citations may not always be 100% accurate.