00407nam a22001697a 450000500170000001000140001702000260003103500130005703700130007008200120008310000180009524500340011326000420014727000120018930000210020165000150022220100811114118.0  aENG-99607  a9789380371177c130.00  aEN-83139  bDBAD/PUB  a511.322  aHarikumar, K.  aSet theory /cby K. Harikumar  aChennaibValarpirai Publicationc2008  bChennai  a80p.c20cm (pbk)  aSet theory