APA (7th ed.) Citation

Spencer, N., Gilchrist, H., Ström, H., Allard, K., & Mallory, M. (2016). Key winter habitat of the ivory gull Pagophila eburnea in the Canadian Arctic. Endangered Species Research, 31, 33.

Chicago Style (17th ed.) Citation

Spencer, NC, HG Gilchrist, H. Ström, KA Allard, and ML Mallory. "Key Winter Habitat of the Ivory Gull Pagophila Eburnea in the Canadian Arctic." Endangered Species Research 31 (2016): 33.

MLA (9th ed.) Citation

Spencer, NC, et al. "Key Winter Habitat of the Ivory Gull Pagophila Eburnea in the Canadian Arctic." Endangered Species Research, vol. 31, 2016, p. 33.