Cita APA (7th ed.)

Zakrzewski, S. F. (1991). Principles of environmental toxicology. American Chemical Society.

Cita Chicago (17th ed.)

Zakrzewski, Sigmund F. Principles of Environmental Toxicology. Washington, D.C: American Chemical Society, 1991.

Cita MLA (9th ed.)

Zakrzewski, Sigmund F. Principles of Environmental Toxicology. American Chemical Society, 1991.