00273nam a2200109 a 450000500170000002000150001708200190003210000160005124500360006726000420010330000180014520251203092003.0  a0074624806  a512.7,bD, tel  aTelang, S.G  aNumber theory, S.G. Telang, eng  aNew Delhi, Tata McGraw-Hill, Inc1996  ax,660p.c20cm