00385    a2200157   4500020001800000082001500018100001600033245002500049250000900074260004900083300002100132650001600153650001600169650002500185700001700210  a9788122425741  a511.1bVAT  aVatsa, B.S.  aDiscrete mathematics  a4th.  aNew DelhibNew Age Internationalc1986g2009  axi, 302p.c24cm.  aMATHEMATICS  aPROBABILITY  aDISCRETE MATHEMATICS  aVatsa, Suchi