00558nam a22001697a 450000500170000001000150001702000260003203500140005803700130007208200100008510000240009524500560011926000500017527000890022530000240031450000500033820191015112509.0  aENG-126658  a9789353433062c619.00  aEN-110190  bDBAD/PUB  a511.6  aBrualdi, Richard A.  aIntroductory combinatorics /cby Richard A. Brualdi  aNoidabPearson India Education Servicesc2020  a15th Floor, Tower-B, World Trade Tower, Plot No.1bBlock-C, Sector-16, Noidae201301  axi;605p.c24cm(pbk)  aIncludes bibliographical references and index