Cita APA (7th ed.)

O'Hair, D., Stewart, R. A., & Rubenstein, H. (1999). Public speaking: Challenges and choices. Bedford/St. Martin's Press.

Cita Chicago (17th ed.)

O'Hair, Dan, Robert A. Stewart, i Hannah Rubenstein. Public Speaking: Challenges and Choices. Boston: Bedford/St. Martin's Press, 1999.

Cita MLA (9th ed.)

O'Hair, Dan, et al. Public Speaking: Challenges and Choices. Bedford/St. Martin's Press, 1999.