APA ציטוט

Massen, J. J. M., Vermunt, D. A., & Sterck, E. H. M. (2012). Male Yawning Is More Contagious than Female Yawning among Chimpanzees (Pan troglodytes). Public Library of Science.

Citação norma Chicago

Massen, Jorg J. M., Dorith A. Vermunt, and Elisabeth H. M. Sterck. Male Yawning Is More Contagious Than Female Yawning Among Chimpanzees (Pan Troglodytes). Public Library of Science, 2012.

ציטוט MLA

Massen, Jorg J. M., Dorith A. Vermunt, and Elisabeth H. M. Sterck. Male Yawning Is More Contagious Than Female Yawning Among Chimpanzees (Pan Troglodytes). Public Library of Science, 2012.