00987nam--2200337---450-9900006186102033160061861USA010061861(ALEPH)000061861USA01006186120010911d1971----km-y0itay0103----baengUS||||||||001yyCopmbinatorial methodswith 58 illustrationsJ.K. PercusNew YorkSpringer Verlag1971IX, 194 p.ill.25 cmApplied Mathematical Sciences42001Applied Mathematical Sciences4511.6PERCUS,Jerome K.49778ITsalbcISBD990000618610203316510 AMS 44970 CBS51000108040BKSCIPATTY9020010911USA01094420020403USA011711PATRY9020040406USA011643Copmbinatorial methods956809UNISA