Dyfyniad APA

Thompson, W. S. (1970). Population problems. McGraw-Hill Book Company.

Dyfyniad Arddull Chicago

Thompson, Warren S. Population Problems. New York: McGraw-Hill Book Company, 1970.

Dyfyniad MLA

Thompson, Warren S. Population Problems. McGraw-Hill Book Company, 1970.

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