Wagoner, H. D. (1968). The U.S. machine tool industry from 1900 to 1950. Cambridge, Mass: M.I.T. Press.
Dyfyniad Arddull ChicagoWagoner, Harless D. The U.S. Machine Tool Industry From 1900 to 1950. Cambridge, Mass: M.I.T. Press, 1968.
Dyfyniad MLAWagoner, Harless D. The U.S. Machine Tool Industry From 1900 to 1950. Cambridge, Mass: M.I.T. Press, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.