Dyfyniad APA

(1997). The environment and emmerging development issues. Oxford: Clarendon.

Dyfyniad Arddull Chicago

The Environment and Emmerging Development Issues. Oxford: Clarendon, 1997.

Dyfyniad MLA

The Environment and Emmerging Development Issues. Oxford: Clarendon, 1997.

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