Hyman, A. (1984). Charles Babbage, pioneer of the computer. Oxford: Oxford University Press.
Dyfyniad Arddull ChicagoHyman, Anthony. Charles Babbage, Pioneer of the Computer. Oxford: Oxford University Press, 1984.
Dyfyniad MLAHyman, Anthony. Charles Babbage, Pioneer of the Computer. Oxford: Oxford University Press, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.