Lipschutz,Seymour and Lipson,Marc Lars. (1992). 2000 solved problems in Discrete Mathematics. Mc Graw Hill.
استشهاد بنمط شيكاغوLipschutz,Seymour and Lipson,Marc Lars. 2000 Solved Problems in Discrete Mathematics. New York: Mc Graw Hill, 1992.
MLA استشهادLipschutz,Seymour and Lipson,Marc Lars. 2000 Solved Problems in Discrete Mathematics. Mc Graw Hill, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.