Cita APA (7a ed.)

Chonko, L. B., & Enis, B. M. (1993). Professional selling. Allyn and Bacon.

Cita Chicago Style (17a ed.)

Chonko, Lawrence B., y Ben M. Enis. Professional Selling. Boston [etc.]: Allyn and Bacon, 1993.

Cita MLA (9a ed.)

Chonko, Lawrence B., y Ben M. Enis. Professional Selling. Allyn and Bacon, 1993.