Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.