Dyfyniad APA

Colombo Plan Bureau. (1973). Development aid: Contributions of major donors. Information Dept., Colombo Plan Bureau].

Dyfyniad Arddull Chicago

Colombo Plan Bureau. Development Aid: Contributions of Major Donors. [Colombo: Information Dept., Colombo Plan Bureau], 1973.

Dyfyniad MLA

Colombo Plan Bureau. Development Aid: Contributions of Major Donors. Information Dept., Colombo Plan Bureau], 1973.

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