APA (7e ed.) Bronvermelding

Karlson David. (2004). Marketing Your Consulting or Professional Services. Viva Books.

Chicago (17e ed.) Bronvermelding

Karlson David. Marketing Your Consulting or Professional Services. New Delhi: Viva Books, 2004.

MLA (9e ed.) Bronvermelding

Karlson David. Marketing Your Consulting or Professional Services. Viva Books, 2004.

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