APA Edition Citation

Walker, C. H., Hopkin, S. P., Peakall, D. B., & Sibly, R. M. (2012). Principles of ecotoxicology (4th ed.). CRC Press.

Chicago Edition Citation

Walker, C. H., Stephen P. Hopkin, David B. Peakall, and R. M. Sibly. Principles of Ecotoxicology. 4th ed. Boca Raton, FL: CRC Press, 2012.

MLA Edition Citation

Walker, C. H., et al. Principles of Ecotoxicology. 4th ed. CRC Press, 2012.