APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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