Dyfyniad APA

Patterson, T. E. (2003). The American democracy (6th ed.). Boston: McGraw-Hill.

Dyfyniad Arddull Chicago

Patterson, Thomas E. The American Democracy. 6th ed. Boston: McGraw-Hill, 2003.

Dyfyniad MLA

Patterson, Thomas E. The American Democracy. 6th ed. Boston: McGraw-Hill, 2003.

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