APA (7th ed.) Citation

HARDING, B. (2013). CLIMATE FEEDBACKS. Scientific American, 308(4), 8.

Chicago Style (17th ed.) Citation

HARDING, BEN. "CLIMATE FEEDBACKS." Scientific American 308, no. 4 (2013): 8.

MLA (9th ed.) Citation

HARDING, BEN. "CLIMATE FEEDBACKS." Scientific American, vol. 308, no. 4, 2013, p. 8.