Style de citation APA (7e éd.)

Rygula, R., Pluta, H., & Popik, P. (2012). Laughing rats are optimistic. Public Library of Science (PLoS).

Style de citation Chicago (17e éd.)

Rygula, Rafal, Helena Pluta, et Piotr Popik. Laughing Rats Are Optimistic. Public Library of Science (PLoS), 2012.

Style de citation MLA (8e éd.)

Rygula, Rafal, et al. Laughing Rats Are Optimistic. Public Library of Science (PLoS), 2012.