APA (7th ed.) Zitazioa

(1992). Encyclopaedia of ecology, environment and pollution control. Mital.

Chicago Style (17th ed.) Zitazioa

Encyclopaedia of Ecology, Environment and Pollution Control. New Delhi: Mital, 1992.

MLA (9th ed.) Zitazioa

Encyclopaedia of Ecology, Environment and Pollution Control. Mital, 1992.