Gaya APA

Klaassen, C, D., Watkins, J, B. (2007). Casarett & Doull's Essentials of Toxicology (Chapter 22) . 615.9: McGraww Hill Companies.

Gaya MLA

Klaassen, Curtis, D.., Watkins, John, B.. "Casarett & Doull's Essentials of Toxicology (Chapter 22)". 615.9: McGraww Hill Companies, 2007. Text.