Erickson, F. J., & Vonk, J. A. (1996). Effective internet. Irwin.
Cita Chicago (17th ed.)Erickson, Fritz J., i John A. Vonk. Effective Internet. Chicago: Irwin, 1996.
Cita MLA (9th ed.)Erickson, Fritz J., i John A. Vonk. Effective Internet. Irwin, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.