Cita APA (7th ed.)

Connor Tim. (2006). Ninety one Mistakes Smart Salespeople Make. Sourcebooks.

Cita Chicago (17th ed.)

Connor Tim. Ninety One Mistakes Smart Salespeople Make. USA: Sourcebooks, 2006.

Cita MLA (9th ed.)

Connor Tim. Ninety One Mistakes Smart Salespeople Make. Sourcebooks, 2006.