Cita APA (7th ed.)
Liu, C. L. (2002). Elements of discrete mathematics. McGraw-Hill.
Cita Chicago (17th ed.)
Liu, C. L. Elements of Discrete Mathematics. New Delhi: McGraw-Hill, 2002.
Cita MLA (9th ed.)
Liu, C. L. Elements of Discrete Mathematics. McGraw-Hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.