APA引文

Cross, D., Jonkel, C., Robertson, R., Smith, P., & Stirling, I. The ecology of the polar bear (Ursus maritimus) along the western coast of the Hudson Bay.

Chicago Style (17th ed.) Citation

Cross, Dale, Charles Jonkel, Richard Robertson, Pauline Smith, and Ian Stirling. The Ecology of the Polar Bear (Ursus Maritimus) Along the Western Coast of the Hudson Bay.

MLA引文

Cross, Dale, et al. The Ecology of the Polar Bear (Ursus Maritimus) Along the Western Coast of the Hudson Bay.