APA استشهاد

Arvind Kumar. (2007). Disaster: Ecology and environment. Daya Publishing House.

استشهاد بنمط شيكاغو

Arvind Kumar. Disaster: Ecology and Environment. New Delhi: Daya Publishing House, 2007.

MLA استشهاد

Arvind Kumar. Disaster: Ecology and Environment. Daya Publishing House, 2007.