Citazione Stile APA (7a Edizione)

Osborn, M., & Osborn, S. (1994). Public Speaking (3rd ed.). Houghton Mifflin.

Citazione stile Chigago Style (17a edizione)

Osborn, Michael, e Suzanne Osborn. Public Speaking. 3rd ed. Boston: Houghton Mifflin, 1994.

Citatione MLA (9a ed.)

Osborn, Michael, e Suzanne Osborn. Public Speaking. 3rd ed. Houghton Mifflin, 1994.