Παραπομπή APA

Chhatwal, G. R. (1990). Dictionary of environmental chemistry. Anmol.

Παραπομπή Chicago Style

Chhatwal, Gurdeep R. Dictionary of Environmental Chemistry. New Delhi: Anmol, 1990.

Παραπομπή MLA

Chhatwal, Gurdeep R. Dictionary of Environmental Chemistry. Anmol, 1990.