Cita APA (7th ed.)

Goetsch, D. L., & Davis, S. B. (2004). Effective customer service: Ten steps for technical professions. Pearson Education.

Cita Chicago (17th ed.)

Goetsch, David L., i Stanley B. Davis. Effective Customer Service: Ten Steps for Technical Professions. Upper Saddle River, NJ: Pearson Education, 2004.

Cita MLA (8th ed.)

Goetsch, David L., i Stanley B. Davis. Effective Customer Service: Ten Steps for Technical Professions. Pearson Education, 2004.