Dyfyniad APA

Berelson, B. (1974). Population policy in developed countries. McGraw-Hill.

Dyfyniad Arddull Chicago

Berelson, Bernard. Population Policy in Developed Countries. New york: McGraw-Hill, 1974.

Dyfyniad MLA

Berelson, Bernard. Population Policy in Developed Countries. McGraw-Hill, 1974.

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