APA (7th ed.) Citation

Keeling, R. E., Körtzinger, A., & Gruber, N. (2010). Ocean deoxygenation in a warming world. Annual review of marine science, 2, 199. https://doi.org/10.1146/annurev.marine.010908.163855

Chicago Style (17th ed.) Citation

Keeling, Ralph E., Arne Körtzinger, and Nicolas Gruber. "Ocean Deoxygenation in a Warming World." Annual Review of Marine Science 2 (2010): 199. https://doi.org/10.1146/annurev.marine.010908.163855.

MLA (9th ed.) Citation

Keeling, Ralph E., et al. "Ocean Deoxygenation in a Warming World." Annual Review of Marine Science, vol. 2, 2010, p. 199, https://doi.org/10.1146/annurev.marine.010908.163855.