(1967). Technology in Western civilization. New York: Oxford University Press.
Dyfyniad Arddull ChicagoTechnology in Western Civilization. New York: Oxford University Press, 1967.
Dyfyniad MLATechnology in Western Civilization. New York: Oxford University Press, 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.