एपीए उद्धरण

Chopra,Kanchan. (2001). Ecological economics: For sustainable development. Academic Foundation.

शिकागो स्टाइल उद्धरण

Chopra,Kanchan. Ecological Economics: For Sustainable Development. Delhi: Academic Foundation, 2001.

एमएलए उद्धरण

Chopra,Kanchan. Ecological Economics: For Sustainable Development. Academic Foundation, 2001.