APA (7e ed.) Bronvermelding

Wollan, R. &. O. (2013). Selling through someone else. John Wiley.

Chicago (17e ed.) Bronvermelding

Wollan, Robert & Others. Selling Through Someone Else. New Jersey: John Wiley, 2013.

MLA (9e ed.) Bronvermelding

Wollan, Robert & Others. Selling Through Someone Else. John Wiley, 2013.