Sperber, H., & Trittschuh, T. (1962). Dictionary of American political terms. New York: McGraw-Hill.
Dyfyniad Arddull ChicagoSperber, Hans, và Travis Trittschuh. Dictionary of American Political Terms. New York: McGraw-Hill, 1962.
Dyfyniad MLASperber, Hans, và Travis Trittschuh. Dictionary of American Political Terms. New York: McGraw-Hill, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.