Dyfyniad APA

World bank. (1999). World development report 1998-99: Knowledge for development. University press.

Dyfyniad Arddull Chicago

World bank. World Development Report 1998-99: Knowledge for Development. Oxford: University press, 1999.

Dyfyniad MLA

World bank. World Development Report 1998-99: Knowledge for Development. University press, 1999.

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