Citazione Stile APA (7a Edizione)

Schiggman, S. (2010). Selling When No One is Buying (5th.). Kogan Page.

Citazione stile Chigago Style (17a edizione)

Schiggman, Stephan. Selling When No One Is Buying. 5th. India: Kogan Page, 2010.

Citatione MLA (9a ed.)

Schiggman, Stephan. Selling When No One Is Buying. 5th. Kogan Page, 2010.