Citazione Stile APA (7a Edizione)

Johnson, D. L. (1980). Topics in the group presentations. Cambridge University.

Citazione stile Chigago Style (17a edizione)

Johnson, David Leroy. Topics in the Group Presentations. Cambridge: Cambridge University, 1980.

Citatione MLA (9a ed.)

Johnson, David Leroy. Topics in the Group Presentations. Cambridge University, 1980.