Cita APA (7a ed.)

Sibly, R. M., Hopkin, S., & Walker, C. (2006). Principles of Ecotoxicology (3ª ed.).

Cita Chicago Style (17a ed.)

Sibly, R. M., S.P Hopkin, y C.H Walker. Principles of Ecotoxicology. 3ª ed. New York, 2006.

Cita MLA (8a ed.)

Sibly, R. M., et al. Principles of Ecotoxicology. 3ª ed. 2006.