Dyfyniad APA

Landis, W. G., & Ming-Ho Yu. (2003). Introduction to environmental toxicology (3rd ed.). Lewis publishers.

Dyfyniad Arddull Chicago

Landis, Wayne G., and Ming-Ho Yu. Introduction to Environmental Toxicology. 3rd ed. Boca Raton: Lewis publishers, 2003.

Dyfyniad MLA

Landis, Wayne G., and Ming-Ho Yu. Introduction to Environmental Toxicology. 3rd ed. Lewis publishers, 2003.

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