Levy, L. S. (1980). Discrete structures of computer science. Wiley.
Dyfyniad Arddull ChicagoLevy, Leon S. Discrete Structures of Computer Science. New Delhi: Wiley, 1980.
Dyfyniad MLALevy, Leon S. Discrete Structures of Computer Science. Wiley, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.