Cita APA (7a ed.)

Solomon, R., & Schafer, I. (2016). The art of client service: The classic guide (3rd. ed.). John Wiley & Sons, Inc.

Cita Chicago Style (17a ed.)

Solomon, Robert, y Ian Schafer. The Art of Client Service: The Classic Guide. 3rd. ed. Hoboken, New Jersey: John Wiley & Sons, Inc, 2016.

Cita MLA (9a ed.)

Solomon, Robert, y Ian Schafer. The Art of Client Service: The Classic Guide. 3rd. ed. John Wiley & Sons, Inc, 2016.