Balakrishnan, V. K. (1995). Schaum's outline of theory and problems of combinatorics. New York: McGraw-Hill.
Παραπομπή Chicago StyleBalakrishnan, V. K. Schaum's Outline of Theory and Problems of Combinatorics. New York: McGraw-Hill, 1995.
Παραπομπή MLABalakrishnan, V. K. Schaum's Outline of Theory and Problems of Combinatorics. New York: McGraw-Hill, 1995.
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