00509nam a22001577a 450000500170000001000150001702000290003203500140006103700130007508200080008810000130009624500580010926000480016727001120021530000240032720210127143633.0  aENG-128847  c90.00a978-81-7254-800-X  aEN-112379  bDBAD/PUB  a510  aBala, R.  aDefinitions and Formulae in Mathematics/cby  R. Bala  aChennaibSura College of Competition c2018  bChennaie600040a1620, J  Block, 16th Main Road, Anna Nagark044-26162173, 261161099menquiry@surabooks.com  aiv+108p.c21cm(pbk)