Dyfyniad APA

Mehu, M., & Dunbar, R. (2008). Naturalistic observations of smiling and laughter in human group interactions. Brill.

Dyfyniad Arddull Chicago

Mehu, M., and R. Dunbar. Naturalistic Observations of Smiling and Laughter in Human Group Interactions. Brill, 2008.

Dyfyniad MLA

Mehu, M., and R. Dunbar. Naturalistic Observations of Smiling and Laughter in Human Group Interactions. Brill, 2008.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.