Burns, J. M. G., & Peltason, J. W. (1963). Government by the people (5ª ed.). Prentice Hall.
Dyfyniad Arddull ChicagoBurns, James Mac Gregor, and Jack Walter Peltason. Government by the People. 5ª ed. Prentice Hall, 1963.
Dyfyniad MLABurns, James Mac Gregor, and Jack Walter Peltason. Government by the People. 5ª ed. Prentice Hall, 1963.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.