Cita APA (7th ed.)

Dumont, R. A., & Lannon, J. M. (1987). Business communications (2nd ed.). Little, Brown.

Cita Chicago (17th ed.)

Dumont, Raymond A., i John M. Lannon. Business Communications. 2nd ed. Boston: Little, Brown, 1987.

Cita MLA (9th ed.)

Dumont, Raymond A., i John M. Lannon. Business Communications. 2nd ed. Little, Brown, 1987.