Yaglom, A. (1987). Challenging mathematical problems with elementary solutions. V.1- Combinatorial analysis and probability theory. Dover.
Trích dẫn kiểu ChicagoYaglom, A.M. Challenging Mathematical Problems with Elementary Solutions. V.1- Combinatorial Analysis and Probability Theory. New York: Dover, 1987.
Trích dẫn MLAYaglom, A.M. Challenging Mathematical Problems with Elementary Solutions. V.1- Combinatorial Analysis and Probability Theory. Dover, 1987.
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