Παραπομπή APA

Lipschutz, S., & Lipson, M. L. (1992). 2000 solved problems in discrete mathematics. McGraw-Hill.

Παραπομπή Chicago Style

Lipschutz, Seymour, και Marc Lars Lipson. 2000 Solved Problems in Discrete Mathematics. New York: McGraw-Hill, 1992.

Παραπομπή MLA

Lipschutz, Seymour, και Marc Lars Lipson. 2000 Solved Problems in Discrete Mathematics. McGraw-Hill, 1992.