APA

Swenson J. E., Alt K. L. & Eng R. L. (1986). Ecology of bald eagles in the greater yellowstone ecosystem. Bethesda, Maryland, United States: The Wildlife Society.

Chicago

Swenson Jon E, Alt Kurt L and Eng Robert L. 1986. Ecology of bald eagles in the greater yellowstone ecosystem. Bethesda, Maryland, United States: The Wildlife Society.

Harvard

Swenson J. E., Alt K. L. and Eng R. L. (1986). Ecology of bald eagles in the greater yellowstone ecosystem. Bethesda, Maryland, United States: The Wildlife Society.

MLA

Swenson Jon E, Alt Kurt L and Eng Robert L. Ecology of bald eagles in the greater yellowstone ecosystem. Bethesda, Maryland, United States: The Wildlife Society. 1986.