APA (7e ed.) Bronvermelding

Osborn, M., & Osborn, S. (2000). Public speaking (5th ed.). Houghton Mifflin.

Chicago (17e ed.) Bronvermelding

Osborn, Michael, en Suzanne Osborn. Public Speaking. 5th ed. Boston: Houghton Mifflin, 2000.

MLA (8e ed.) Bronvermelding

Osborn, Michael, en Suzanne Osborn. Public Speaking. 5th ed. Houghton Mifflin, 2000.