APA (7th ed.) Citation

RL, B., & M, S. (1981). Oxygen isotope ratios in trees reflect mean annual temperature and humidity. Science (New York, N.Y.), 211(4489), 1417. https://doi.org/10.1126/science.211.4489.1417

Chicago Style (17th ed.) Citation

RL, Burk, and Stuiver M. "Oxygen Isotope Ratios in Trees Reflect Mean Annual Temperature and Humidity." Science (New York, N.Y.) 211, no. 4489 (1981): 1417. https://doi.org/10.1126/science.211.4489.1417.

MLA (9th ed.) Citation

RL, Burk, and Stuiver M. "Oxygen Isotope Ratios in Trees Reflect Mean Annual Temperature and Humidity." Science (New York, N.Y.), vol. 211, no. 4489, 1981, p. 1417, https://doi.org/10.1126/science.211.4489.1417.