Cita APA

Osborn, M., & Osborn, S. (1997). Public Speaking (3rd [i.e.] 4th ed.). Houghton Mifflin.

Chicago Edition Citation

Osborn, Michael, i Suzanne Osborn. Public Speaking. 3rd [i.e.] 4th ed. Boston: Houghton Mifflin, 1997.

Cita MLA

Osborn, Michael, i Suzanne Osborn. Public Speaking. 3rd [i.e.] 4th ed. Houghton Mifflin, 1997.