Dyfyniad APA

Perlman,Richard. (1976). The economics of poverty. McGraw Hill Book Company.

Dyfyniad Arddull Chicago

Perlman,Richard. The Economics of Poverty. New York: McGraw Hill Book Company, 1976.

Dyfyniad MLA

Perlman,Richard. The Economics of Poverty. McGraw Hill Book Company, 1976.

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