एपीए उद्धरण

Gunn, A. M. (2008). Encyclopedia of disasters: Environmental catastrophes and human tragedies. Greenwood.

शिकागो स्टाइल उद्धरण

Gunn, Angus M. Encyclopedia of Disasters: Environmental Catastrophes and Human Tragedies. Westport: Greenwood, 2008.

एमएलए उद्धरण

Gunn, Angus M. Encyclopedia of Disasters: Environmental Catastrophes and Human Tragedies. Greenwood, 2008.