Dyfyniad APA

Patterson, T. E. (1994). The American democracy (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Patterson, Thomas E. The American Democracy. 2nd ed. New York: McGraw-Hill, 1994.

Dyfyniad MLA

Patterson, Thomas E. The American Democracy. 2nd ed. McGraw-Hill, 1994.

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