Gaya APA

Lipson, S, L, M, L. (1992). Schaum's Solved Problems Series 2000 Solved Problems in Discrete Mathematics . New York: McGraw-Hill, Inc..

Gaya MLA

Lipson, Seymour, Lipschutz,, Marc, Lars. "Schaum's Solved Problems Series 2000 Solved Problems in Discrete Mathematics". New York: McGraw-Hill, Inc., 1992. Text.