00368    a2200133   4500020001500000082001800015100002300033245005900056260003800115300002000153650001800173650001600191650002700207  a007003575x  a511.6076bBAL  aBalakrishnan, V.K.  aShamus outline of theory and problems of combinatorics  aNew YorkbMcGraw-Hillc1995g1995  avii,199p.c27cm  aCOMBINATORICS  aMATHEMATICS  aCOMBINATORIAL ANALYSIS