Johnsonbaugh, R. (1987). Essential discrete mathematics. Macmillan.
Chicago-čujuhus (17. p.)Johnsonbaugh, Richard. Essential Discrete Mathematics. New York: Macmillan, 1987.
MLA-čujuhus (9. p.)Johnsonbaugh, Richard. Essential Discrete Mathematics. Macmillan, 1987.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.