Cita APA (7th ed.)

Osborn, M., & Suzanne Osborn. (1988). Public Speaking. Houghton Mifflin Company.

Cita Chicago (17th ed.)

Osborn, Michael, i Suzanne Osborn. Public Speaking. Boston, Massachusetts: Houghton Mifflin Company, 1988.

Cita MLA (9th ed.)

Osborn, Michael, i Suzanne Osborn. Public Speaking. Houghton Mifflin Company, 1988.