Watts, W., & Free, L. A. (1974). State of the Nation, 1974. distributed by Basic Books.
Dyfyniad Arddull ChicagoWatts, William, and Lloyd A. Free. State of the Nation, 1974. Washington : Potomac Associates ; New York: distributed by Basic Books, 1974.
Dyfyniad MLAWatts, William, and Lloyd A. Free. State of the Nation, 1974. distributed by Basic Books, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.