Ketchum, D. J. (1965). Pulse and switching circuits. New York: McGraw-Hill.
Dyfyniad Arddull ChicagoKetchum, Donald J. Pulse and Switching Circuits. New York: McGraw-Hill, 1965.
Dyfyniad MLAKetchum, Donald J. Pulse and Switching Circuits. New York: McGraw-Hill, 1965.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.