Dyfyniad APA

(2009). Human development Report 2009 Overcoming barriers: Human mobility and development.

Dyfyniad Arddull Chicago

Human Development Report 2009 Overcoming Barriers: Human Mobility and Development. 2009.

Dyfyniad MLA

Human Development Report 2009 Overcoming Barriers: Human Mobility and Development. 2009.

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