APA Style

Krewski, D., Clayson, D. (1985). Toxicological Risk Assessment. Vol.1. Biological and Critical Criteria . Boca Raton: CRC Press, Inc.

MLA Style

Krewski, D.., Clayson, D.B. "Toxicological Risk Assessment. Vol.1. Biological and Critical Criteria". Boca Raton: CRC Press, Inc, 1985. print.