APA (7e ed.) Bronvermelding

Geller, L. K. (2002). Response: The complete guide to profitable direct marketing (Revised and Expanded.). Oxford University Press.

Chicago (17e ed.) Bronvermelding

Geller, Lois K. Response: The Complete Guide to Profitable Direct Marketing. Revised and Expanded. New York, New York: Oxford University Press, 2002.

MLA (9e ed.) Bronvermelding

Geller, Lois K. Response: The Complete Guide to Profitable Direct Marketing. Revised and Expanded. Oxford University Press, 2002.