APA引文

Erickson, F. J., & Vonk, J. A. (1996). Effective word 7.0. Irwin.

Chicago Style (17th ed.) Citation

Erickson, Fritz J., and John A. Vonk. Effective Word 7.0. Chicago: Irwin, 1996.

MLA引文

Erickson, Fritz J., and John A. Vonk. Effective Word 7.0. Irwin, 1996.