Cita APA (7th ed.)

Glenn, E. C., & Forman, S. H. (1990). Public speaking: Today and tomorrow. Prentice Hall.

Cita Chicago (17th ed.)

Glenn, Ethel C., i Sandra H. Forman. Public Speaking: Today and Tomorrow. Englewood Cliffs, New Jersey: Prentice Hall, 1990.

Cita MLA (9th ed.)

Glenn, Ethel C., i Sandra H. Forman. Public Speaking: Today and Tomorrow. Prentice Hall, 1990.