Johnsonbaugh, R. (2009). Discrete mathematics (6th ed.). Upper Saddle River, N.J.: Pearson Prentice Hall.
Dyfyniad Arddull ChicagoJohnsonbaugh, Richard. Discrete Mathematics. 6th ed. Upper Saddle River, N.J.: Pearson Prentice Hall, 2009.
Dyfyniad MLAJohnsonbaugh, Richard. Discrete Mathematics. 6th ed. Upper Saddle River, N.J.: Pearson Prentice Hall, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.