Cita APA (7th ed.)

Wolf, M. P., & Kuiper, S. (1984). Effective communication in business (8th ed.). South - Western.

Cita Chicago (17th ed.)

Wolf, Morris P., i Shirley Kuiper. Effective Communication in Business. 8th ed. Cincinnati: South - Western, 1984.

Cita MLA (9th ed.)

Wolf, Morris P., i Shirley Kuiper. Effective Communication in Business. 8th ed. South - Western, 1984.