Kaczynski, C. F., Chamberlain, E. B., & Wildlife, U. S. B. o. S. F. a. (1968). Aerial surveys of Canada geese and black ducks in eastern Canada. Washington, D.C. : U.S. Dept. of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife : For sale by the Supt. of Docs., U.S. G.P.O.
Chicago Style (17th ed.) CitationKaczynski, Charles F., Everett B. Chamberlain, and United States. Bureau of Sport Fisheries and Wildlife. Aerial Surveys of Canada Geese and Black Ducks in Eastern Canada. Washington, D.C. : U.S. Dept. of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife : For sale by the Supt. of Docs., U.S. G.P.O, 1968.
MLA (9th ed.) CitationKaczynski, Charles F., et al. Aerial Surveys of Canada Geese and Black Ducks in Eastern Canada. Washington, D.C. : U.S. Dept. of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife : For sale by the Supt. of Docs., U.S. G.P.O, 1968.