एपीए उद्धरण

Pathak, H. K. (2009). Ecology and environment: Current perspectives. Cyber tech publications.

शिकागो स्टाइल उद्धरण

Pathak, H K. Ecology and Environment: Current Perspectives. NewDelhi: Cyber tech publications, 2009.

एमएलए उद्धरण

Pathak, H K. Ecology and Environment: Current Perspectives. Cyber tech publications, 2009.