Dyfyniad APA

(2010). Development Conerns in the 21st Century. Concept.

Dyfyniad Arddull Chicago

Development Conerns in the 21st Century. New Delhi: Concept, 2010.

Dyfyniad MLA

Development Conerns in the 21st Century. Concept, 2010.

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