एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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