Citazione Stile APA (7a Edizione)

Chow, Y. (1997). The skill of handling sales objections. A Sterling Paperback.

Citazione stile Chigago Style (17a edizione)

Chow, Y.C. The Skill of Handling Sales Objections. Manila: A Sterling Paperback, 1997.

Citatione MLA (9a ed.)

Chow, Y.C. The Skill of Handling Sales Objections. A Sterling Paperback, 1997.