Citazione Stile APA (7a Edizione)

Napier, R. W. (1981). Groups: Theory and experience (2nd.ed.). Houghton Mifflin.

Citazione stile Chigago Style (17a edizione)

Napier, Rodney W. Groups: Theory and Experience. 2nd.ed. Boston: Houghton Mifflin, 1981.

Citatione MLA (9a ed.)

Napier, Rodney W. Groups: Theory and Experience. 2nd.ed. Houghton Mifflin, 1981.