APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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