Harman, A. J. (1971). The international computer industry. Cambridge: Harvard University Press.
Dyfyniad Arddull ChicagoHarman, Alvin J. The International Computer Industry. Cambridge: Harvard University Press, 1971.
Dyfyniad MLAHarman, Alvin J. The International Computer Industry. Cambridge: Harvard University Press, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.