Factors influencing waterfowl counts on aerial surveys, 1961-66 /
by R. Kahler Martinson and Charles F. Kaczynski.

APA Citation

Martinson, R. Kahler., United States. Bureau of Sport Fisheries and Wildlife., Kaczynski, C. F. (1967). Factors influencing waterfowl counts on aerial surveys, 1961-66. Washington D.C.: U.S. Dept. of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife .

MLA Citation

Martinson, R. Kahler, United States. Bureau of Sport Fisheries and Wildlife, and Charles F Kaczynski. Factors Influencing Waterfowl Counts On Aerial Surveys, 1961-66. Washington D.C.: U.S. Dept. of the Interior, Fish and Wildlife Service, Bureau of Sport Fisheries and Wildlife , 1967.