Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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