APA (7th ed.) Citation

Steele, A., McCubbin, F. M., Fries, M., Kater, L., Boctor, N. Z., Fogel, M. L., . . . Jull, A. J. T. (2012). A Reduced Organic Carbon Component in Martian Basalts. Science (American Association for the Advancement of Science), 337(6091), 212-215. https://doi.org/10.1126/science.1220715

Chicago Style (17th ed.) Citation

Steele, A., et al. "A Reduced Organic Carbon Component in Martian Basalts." Science (American Association for the Advancement of Science) 337, no. 6091 (2012): 212-215. https://doi.org/10.1126/science.1220715.

MLA (9th ed.) Citation

Steele, A., et al. "A Reduced Organic Carbon Component in Martian Basalts." Science (American Association for the Advancement of Science), vol. 337, no. 6091, 2012, pp. 212-215, https://doi.org/10.1126/science.1220715.