Karlson David. (2004). Marketing Your Consulting or Professional Services. Viva Books.
Style de citation Chicago (17e éd.)Karlson David. Marketing Your Consulting or Professional Services. New Delhi: Viva Books, 2004.
Style de citation MLA (9e éd.)Karlson David. Marketing Your Consulting or Professional Services. Viva Books, 2004.
Attention : ces citations peuvent ne pas être correctes à 100%.