APA (7th ed.) Citation

DE, S., WL, S., GL, T., G, B., FG, L., & AS, K. (1999). The gravity field of Mars: Results from Mars Global Surveyor. Science (New York, N.Y.), 286(5437), 94. https://doi.org/10.1126/science.286.5437.94

Chicago Style (17th ed.) Citation

DE, Smith, Sjogren WL, Tyler GL, Balmino G, Lemoine FG, and Konopliv AS. "The Gravity Field of Mars: Results from Mars Global Surveyor." Science (New York, N.Y.) 286, no. 5437 (1999): 94. https://doi.org/10.1126/science.286.5437.94.

MLA (9th ed.) Citation

DE, Smith, et al. "The Gravity Field of Mars: Results from Mars Global Surveyor." Science (New York, N.Y.), vol. 286, no. 5437, 1999, p. 94, https://doi.org/10.1126/science.286.5437.94.