APA (7e ed.) Bronvermelding

Nelson, R. (2009). The greatest sales training in the world. Jaico Publishing House.

Chicago (17e ed.) Bronvermelding

Nelson, Robert. The Greatest Sales Training in the World. Ahmedabad: Jaico Publishing House, 2009.

MLA (9e ed.) Bronvermelding

Nelson, Robert. The Greatest Sales Training in the World. Jaico Publishing House, 2009.

Let op: Deze citaties zijn niet altijd 100% accuraat.