Παραπομπή APA

De, A. K. (1994). Enviornmental chemistry (3rd ed.). New age Int..

Παραπομπή Chicago Style

De, A K. Enviornmental Chemistry. 3rd ed. New Delhi: New age Int., 1994.

Παραπομπή MLA

De, A K. Enviornmental Chemistry. 3rd ed. New age Int., 1994.