APA (7th ed.) Citation

Porco, T. C., Gao, D., Scott, J. C., Shim, E., Enanoria, W. T., Galvani, A. P., & Lietman, T. M. (2012). When Does Overuse of Antibiotics Become a Tragedy of the Commons? PloS one, 7(12), e46505. https://doi.org/10.1371/journal.pone.0046505

Chicago Style (17th ed.) Citation

Porco, Travis C., Daozhou Gao, James C. Scott, Eunha Shim, Wayne T. Enanoria, Alison P. Galvani, and Thomas M. Lietman. "When Does Overuse of Antibiotics Become a Tragedy of the Commons?" PloS One 7, no. 12 (2012): e46505. https://doi.org/10.1371/journal.pone.0046505.

MLA (9th ed.) Citation

Porco, Travis C., et al. "When Does Overuse of Antibiotics Become a Tragedy of the Commons?" PloS One, vol. 7, no. 12, 2012, p. e46505, https://doi.org/10.1371/journal.pone.0046505.