Dyfyniad APA

(1990). Debt survey of developing countries. Westview Pr.

Dyfyniad Arddull Chicago

Debt Survey of Developing Countries. Boulder, Colo: Westview Pr, 1990.

Dyfyniad MLA

Debt Survey of Developing Countries. Westview Pr, 1990.

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