Lipschutz, S. (1998). Schaum's outline of theory and problems of set theory: And related topics (2nd ed.). New York: McGraw - Hill.
Παραπομπή Chicago StyleLipschutz, Seymour. Schaum's Outline of Theory and Problems of Set Theory: And Related Topics. 2nd ed. New York: McGraw - Hill, 1998.
Παραπομπή MLALipschutz, Seymour. Schaum's Outline of Theory and Problems of Set Theory: And Related Topics. 2nd ed. New York: McGraw - Hill, 1998.
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