Wollan, R. &. O. (2013). Selling through someone else. John Wiley.
Chicago (17e ed.) BronvermeldingWollan, Robert & Others. Selling Through Someone Else. New Jersey: John Wiley, 2013.
MLA (9e ed.) BronvermeldingWollan, Robert & Others. Selling Through Someone Else. John Wiley, 2013.
Let op: Deze citaties zijn niet altijd 100% accuraat.