Schramm, W. L. (1988). The story of human communication: Cave painting to microchip. Harper & Row.
Dyfyniad Arddull ChicagoSchramm, Wilber Lang. The Story of Human Communication: Cave Painting to Microchip. New York: Harper & Row, 1988.
Dyfyniad MLASchramm, Wilber Lang. The Story of Human Communication: Cave Painting to Microchip. Harper & Row, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.