Cita APA (7th ed.)

Walker, C. H., Sibly, R. M., & Hopkin, S. P. (2006). Principles of Ecotoxicology (3rd ed.). Taylor & Francis.

Cita Chicago (17th ed.)

Walker, C. H., R. M. Sibly, i S. P. Hopkin. Principles of Ecotoxicology. 3rd ed. London: Taylor & Francis, 2006.

Cita MLA (9th ed.)

Walker, C. H., et al. Principles of Ecotoxicology. 3rd ed. Taylor & Francis, 2006.