Cita APA (7th ed.)

Lumsden, G., & Lumsden, D. L. (1996). Communicating with credibility and confidence. Wadsworth Pub.

Cita Chicago (17th ed.)

Lumsden, Gay, i Donald L. Lumsden. Communicating with Credibility and Confidence. Belmont, Calif: Wadsworth Pub, 1996.

Cita MLA (9th ed.)

Lumsden, Gay, i Donald L. Lumsden. Communicating with Credibility and Confidence. Wadsworth Pub, 1996.