APA (7e ed.) Bronvermelding

Steven, J. (2000). E-mail Marketing. John Wiley & Sons.

Chicago (17e ed.) Bronvermelding

Steven, Jim. E-mail Marketing. New York: John Wiley & Sons, 2000.

MLA (9e ed.) Bronvermelding

Steven, Jim. E-mail Marketing. John Wiley & Sons, 2000.