00450nam a2200133 a 4500 ASINB0012OI1M2 20140812203654.0 140812s1972 xxu eng d Vilenkin, N. dI8A. Combinatorial mathematics for recreation / N. dI8A. Vilenkin. [S.l.] : MIR Publishers, 1972. 1 v. (unpaged) Amazon.com http://www.amazon.com/exec/obidos/ASIN/B0012OI1M2/chopaconline-20 8764 8764 0 0 0 0 QUESTCL QUESTCL 2014-08-12 0 511.6VIL 22529 2014-08-12 00:00:00 2014-08-12 BK