Dyfyniad APA

Mathews, J. M. (1940). The American constitutional system (2nd ed., rev.and enl.). Mc-Graw-Hill Book Co.

Dyfyniad Arddull Chicago

Mathews, John Mabry. The American Constitutional System. 2nd ed., rev.and enl. New York: Mc-Graw-Hill Book Co, 1940.

Dyfyniad MLA

Mathews, John Mabry. The American Constitutional System. 2nd ed., rev.and enl. Mc-Graw-Hill Book Co, 1940.

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