APA (7th ed.) Citation

Bridgham, J. T., Ortlund, E. A., & Thornton, J. W. (2009). An epistatic ratchet constrains the direction of glucocorticoid receptor evolution. Nature (London), 461(7263), 515-519. https://doi.org/10.1038/nature08249

Chicago Style (17th ed.) Citation

Bridgham, Jamie T., Eric A. Ortlund, and Joseph W. Thornton. "An Epistatic Ratchet Constrains the Direction of Glucocorticoid Receptor Evolution." Nature (London) 461, no. 7263 (2009): 515-519. https://doi.org/10.1038/nature08249.

MLA (9th ed.) Citation

Bridgham, Jamie T., et al. "An Epistatic Ratchet Constrains the Direction of Glucocorticoid Receptor Evolution." Nature (London), vol. 461, no. 7263, 2009, pp. 515-519, https://doi.org/10.1038/nature08249.