Spencer, D. A. (1976). Wintering of the migrant bald eagle in the Lower 48 States. National Agricultural Chemicals Association.
Chicago Style (17th ed.) CitationSpencer, Donald A. Wintering of the Migrant Bald Eagle in the Lower 48 States. Washington: National Agricultural Chemicals Association, 1976.
MLA (9th ed.) CitationSpencer, Donald A. Wintering of the Migrant Bald Eagle in the Lower 48 States. National Agricultural Chemicals Association, 1976.
Warning: These citations may not always be 100% accurate.