Dyfyniad APA

Vesilind, P. A., Morgan, S. M., & Heine, L. G. (2010). Introduction to environmental engineering (3rd S.I. ed.). Cengage Learning.

Dyfyniad Arddull Chicago

Vesilind, P. Aarne, Susan M. Morgan, and Lauren G. Heine. Introduction to Environmental Engineering. 3rd S.I. ed. Stamford, Conn: Cengage Learning, 2010.

Dyfyniad MLA

Vesilind, P. Aarne, et al. Introduction to Environmental Engineering. 3rd S.I. ed. Cengage Learning, 2010.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.