Corwin, E. S., & Peltason, J. W. (1967). Understanding the Constitution (4th ed.). University Book House.
Dyfyniad Arddull ChicagoCorwin, Edward S., and J W. Peltason. Understanding the Constitution. 4th ed. Delhi: University Book House, 1967.
Dyfyniad MLACorwin, Edward S., and J W. Peltason. Understanding the Constitution. 4th ed. University Book House, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.