APA

Mickelson P. G., . (1975). Breeding biology of cackling geese and associated species on the yukon-kuskokwim Delta, Alaska. Bethesda, Maryland: The Wildlife Society.

Chicago

Mickelson P G, . 1975. Breeding biology of cackling geese and associated species on the yukon-kuskokwim Delta, Alaska. Bethesda, Maryland: The Wildlife Society.

Harvard

Mickelson P. G., . (1975). Breeding biology of cackling geese and associated species on the yukon-kuskokwim Delta, Alaska. Bethesda, Maryland: The Wildlife Society.

MLA

Mickelson P G, . Breeding biology of cackling geese and associated species on the yukon-kuskokwim Delta, Alaska. Bethesda, Maryland: The Wildlife Society. 1975.