Cita APA (7th ed.)

Martin, R. C. (1963). Practical speech for modern business. Appleton-Century-Crofts.

Cita Chicago (17th ed.)

Martin, Robert C. Practical Speech for Modern Business. New York: Appleton-Century-Crofts, 1963.

Cita MLA (9th ed.)

Martin, Robert C. Practical Speech for Modern Business. Appleton-Century-Crofts, 1963.