Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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