Dyfyniad APA

Perry, A. L. (1890). Introduction to political economy. Charles Scribner's Sons.

Dyfyniad Arddull Chicago

Perry, Arthur Latham. Introduction to Political Economy. New York: Charles Scribner's Sons, 1890.

Dyfyniad MLA

Perry, Arthur Latham. Introduction to Political Economy. Charles Scribner's Sons, 1890.

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