Dyfyniad APA

Singh, M. (2005). Environment and natural resources. satish serial publications.

Dyfyniad Arddull Chicago

Singh, M.P. Environment and Natural Resources. Delhi: satish serial publications, 2005.

Dyfyniad MLA

Singh, M.P. Environment and Natural Resources. satish serial publications, 2005.

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