APA (7th ed.) Citation

Reinhard, D. A., Konrath, S. H., Lopez, W. D., & Cameron, H. G. (2012). Expensive Egos: Narcissistic Males Have Higher Cortisol. PloS one, 7(1), e30858. https://doi.org/10.1371/journal.pone.0030858

Chicago Style (17th ed.) Citation

Reinhard, David A., Sara H. Konrath, William D. Lopez, and Heather G. Cameron. "Expensive Egos: Narcissistic Males Have Higher Cortisol." PloS One 7, no. 1 (2012): e30858. https://doi.org/10.1371/journal.pone.0030858.

MLA (9th ed.) Citation

Reinhard, David A., et al. "Expensive Egos: Narcissistic Males Have Higher Cortisol." PloS One, vol. 7, no. 1, 2012, p. e30858, https://doi.org/10.1371/journal.pone.0030858.