Cita APA (7a ed.)

Hopkins, T., & Ganser L.J. (2008). The Certifiable Salesperson. Recorded Books, Inc.

Cita Chicago Style (17a ed.)

Hopkins, Tom, y Ganser L.J. The Certifiable Salesperson. [S.I.]: Recorded Books, Inc, 2008.

Cita MLA (9a ed.)

Hopkins, Tom, y Ganser L.J. The Certifiable Salesperson. Recorded Books, Inc, 2008.