00557nam a22001817a 450000500170000001000150001702000260003203500130005803700130007108200080008410000260009224500700011825000110018826000300019927000680022930000280029750000500032520141127144315.0  aENG-111233  a9788120350618c595.00  aEN-94765  bDBAD/PUB  a511  aBiswal, Purna Chandra  aDiscrete mathematics and graph theory /cby Purna Chandra Biswal   a4th ed  aDelhibPHI Learningc2015  aRimjhim House, 111, Patparganj Industrial EstatebDelhie110092  axviii,730p. c24cm(pbk)  aIncludes bibliographical references and index