APA (7e ed.) Bronvermelding

STONE, B. (1994). Successful Direct Marketing Methods Bob Stone. NTC Business Books.

Chicago (17e ed.) Bronvermelding

STONE, Bob. Successful Direct Marketing Methods Bob Stone. NTC Business Books, 1994.

MLA (8e ed.) Bronvermelding

STONE, Bob. Successful Direct Marketing Methods Bob Stone. NTC Business Books, 1994.

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