Παραπομπή APA

Kumar, A. [. (2006). Ecological crisis and management. Daya Publishing House.

Παραπομπή Chicago Style

Kumar, Arvind [ed.]. Ecological Crisis and Management. New Delhi: Daya Publishing House, 2006.

Παραπομπή MLA

Kumar, Arvind [ed.]. Ecological Crisis and Management. Daya Publishing House, 2006.