Dyfyniad APA

Richards, I. S., & Bourgeois, M. (2014). Principles and practice of toxicology in public health (2nd ed.). Jones & Bartlett Learning.

Dyfyniad Arddull Chicago

Richards, Ira S., and Marie Bourgeois. Principles and Practice of Toxicology in Public Health. 2nd ed. Sudbury, Mass.: Jones & Bartlett Learning, 2014.

Dyfyniad MLA

Richards, Ira S., and Marie Bourgeois. Principles and Practice of Toxicology in Public Health. 2nd ed. Jones & Bartlett Learning, 2014.

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