APA (7e ed.) Bronvermelding

FORSYTH PATRICK. (2004). MARKETING & SELLING PROFESSIONAL SERVICES (3RD.). KOGAN PAGE.

Chicago (17e ed.) Bronvermelding

FORSYTH PATRICK. MARKETING & SELLING PROFESSIONAL SERVICES. 3RD. LONDON: KOGAN PAGE, 2004.

MLA (9e ed.) Bronvermelding

FORSYTH PATRICK. MARKETING & SELLING PROFESSIONAL SERVICES. 3RD. KOGAN PAGE, 2004.

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