Some recent publications on management and propagation of waterfowl - Nestler, Ralph B.; U.S. Fish; Wildlife Service (Chicago, Ill, U.S. Dept. of the Interior, Fish and Wildlife Service, 1945)
https://www.biodiversitylibrary.org/bibliography/67844
Keywords: Bibliography|Game and game-birds|North America|Waterfowl|Waterfowl management|