APA

Cross D. H., . (1988). Waterfowl management handbook. Washington D.C: US Department of the Interior. Fish and Wildlife Service.

Chicago

Cross Diana H, . 1988. Waterfowl management handbook. Washington D.C: US Department of the Interior. Fish and Wildlife Service.

Harvard

Cross D. H., . (1988). Waterfowl management handbook. Washington D.C: US Department of the Interior. Fish and Wildlife Service.

MLA

Cross Diana H, . Waterfowl management handbook. Washington D.C: US Department of the Interior. Fish and Wildlife Service. 1988.