APA (7th ed.) Citation

F, F., G, T., JF, R., D, C., LA, R., S, B., . . . K, U. (2011). Two Earth-sized planets orbiting Kepler-20. Nature, 482(7384), 195. https://doi.org/10.1038/nature10780

Chicago Style (17th ed.) Citation

F, Fressin, et al. "Two Earth-sized Planets Orbiting Kepler-20." Nature 482, no. 7384 (2011): 195. https://doi.org/10.1038/nature10780.

MLA (9th ed.) Citation

F, Fressin, et al. "Two Earth-sized Planets Orbiting Kepler-20." Nature, vol. 482, no. 7384, 2011, p. 195, https://doi.org/10.1038/nature10780.