Lipschutz, S. (1992). 2000 Solved Problems in Discrete Mathematics. Modern Book Centre.
Cita Chicago (17th ed.)Lipschutz, S. 2000 Solved Problems in Discrete Mathematics. New York: Modern Book Centre, 1992.
Cita MLA (9th ed.)Lipschutz, S. 2000 Solved Problems in Discrete Mathematics. Modern Book Centre, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.