APA

Hupp J. W., Robertson D. G., . (1998). Forage site selection by lesser snow geese during autumn staging on the arctic national wildlife refuge, Alaska. Bethesda, Maryland, United States: The Wildlife Society.

Chicago

Hupp Jerry W, Robertson Donna G, . 1998. Forage site selection by lesser snow geese during autumn staging on the arctic national wildlife refuge, Alaska. Bethesda, Maryland, United States: The Wildlife Society.

Harvard

Hupp J. W., Robertson D. G., . (1998). Forage site selection by lesser snow geese during autumn staging on the arctic national wildlife refuge, Alaska. Bethesda, Maryland, United States: The Wildlife Society.

MLA

Hupp Jerry W, Robertson Donna G, . Forage site selection by lesser snow geese during autumn staging on the arctic national wildlife refuge, Alaska. Bethesda, Maryland, United States: The Wildlife Society. 1998.