00313nam a2200109Ia 4500008004100000020001800041082001500059100002200074245005700096260003700153300001300190190710s9999    xx            000 0 und d  a0-07-113895-1  a512.5 B588  aBalakrishnan, V K 0aSchaums outline of theory and problems combinatorics  aNew delhibMcgraw-hill Incc1995  aviii,200