Citazione APA

Ingram, T. N. . .., LaForge,Raymond W, Avila,Ramon A, & Schwepker,Charles H. (2004). Professional selling: A trust-based approach. Harcourt College Publishers.

Stile di citazione Chicago

Ingram, Thomas N ., LaForge,Raymond W, Avila,Ramon A, e Schwepker,Charles H. Professional Selling: A Trust-based Approach. London: Harcourt College Publishers, 2004.

Citazione MLA

Ingram, Thomas N ., et al. Professional Selling: A Trust-based Approach. Harcourt College Publishers, 2004.