Kepler-9: a system of multiple planets transiting a Sun-like star, confirmed by timing variations.

MLA

Holman, Matthew J., et al. “Kepler-9: A System of Multiple Planets Transiting a Sun-like Star, Confirmed by Timing Variations.” Science (New York, N.Y.), vol. 330, no. 6000, Oct. 2010, pp. 51–54. EBSCOhost, https://doi.org/10.1126/science.1195778.

APA

Holman, M. J., Fabrycky, D. C., Ragozzine, D., Ford, E. B., Steffen, J. H., Welsh, W. F., Lissauer, J. J., Latham, D. W., Marcy, G. W., Walkowicz, L. M., Batalha, N. M., Jenkins, J. M., Rowe, J. F., Cochran, W. D., Fressin, F., Torres, G., Buchhave, L. A., Sasselov, D. D., Borucki, W. J., … Orosz, J. A. (2010). Kepler-9: a system of multiple planets transiting a Sun-like star, confirmed by timing variations. Science (New York, N.Y.), 330(6000), 51–54. https://doi.org/10.1126/science.1195778

Chicago

Holman, Matthew J, Daniel C Fabrycky, Darin Ragozzine, Eric B Ford, Jason H Steffen, William F Welsh, Jack J Lissauer, et al. 2010. “Kepler-9: A System of Multiple Planets Transiting a Sun-like Star, Confirmed by Timing Variations.” Science (New York, N.Y.) 330 (6000): 51–54. doi:10.1126/science.1195778.