APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Walker, C. H., R. M. Sibly, and S. P. Hopkin. Principles of Ecotoxicology. 4th ed. Boca Raton: CRC Press, 2012.

MLA (9th ed.) Citation

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