Cita APA (7a ed.)

Townsend, C. R., Harper, J. L., & Begon, M. (2000). Essentials of ecology. Blackwell Science.

Cita Chicago Style (17a ed.)

Townsend, Colin R., John L. Harper, y Michael Begon. Essentials of Ecology. Malden: Blackwell Science, 2000.

Cita MLA (9a ed.)

Townsend, Colin R., et al. Essentials of Ecology. Blackwell Science, 2000.