Παραπομπή APA

Sehgal, J. L. (1992). Agro -ecological regions of India. Oxford and IBH publishing.

Παραπομπή Chicago Style

Sehgal, J L. Agro -ecological Regions of India. New Delhi: Oxford and IBH publishing, 1992.

Παραπομπή MLA

Sehgal, J L. Agro -ecological Regions of India. Oxford and IBH publishing, 1992.