APA (7e ed.) Bronvermelding

BLY ROBERT W. (1992). BUSINESS TO BUSINESS DIRECT MARKETING. NTC BUSINESS BOOKS.

Chicago (17e ed.) Bronvermelding

BLY ROBERT W. BUSINESS TO BUSINESS DIRECT MARKETING. LINCOLNWOOD: NTC BUSINESS BOOKS, 1992.

MLA (9e ed.) Bronvermelding

BLY ROBERT W. BUSINESS TO BUSINESS DIRECT MARKETING. NTC BUSINESS BOOKS, 1992.

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