APA-referens (7:e uppl.)

Liu, C. L. (1985). Elements of discrete mathematics (2nd ed.). McGraw-Hill.

Chicago-referens (17:e uppl.)

Liu, C. L. Elements of Discrete Mathematics. 2nd ed. New York: McGraw-Hill, 1985.

MLA-referens (8:e uppl.)

Liu, C. L. Elements of Discrete Mathematics. 2nd ed. McGraw-Hill, 1985.