00491nam a22001577a 4500008004100000020001400041040005500055080002300110245004800133260005500181300001000236650002700246700001900273700001900292700002200311230425b        |||||||| |||| 00| 0 eng d  a720420377  aNational Science LibrarycNational Science Library  a519.1(082.2)bL0.1  aCombinatorial theory and its applications I  aLondon: bNorth-Holland Publishing Company, c1970  a390p.  aCombinatorial analysis  aErdos, P (Ed.)  aRenyi, A (Ed.)  aSos, Vera T (Ed.)