Dyfyniad APA

Barbara Ward. (1962). The rich nation and the poor nation. New York: Norton and Co.

Dyfyniad Arddull Chicago

Barbara Ward. The Rich Nation and the Poor Nation. New York: Norton and Co, 1962.

Dyfyniad MLA

Barbara Ward. The Rich Nation and the Poor Nation. New York: Norton and Co, 1962.

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