00333nam a2200121 a 450000500170000002000180001708200150003510000220005024500600007226000360013230000240016850000190019220251203111231.0  a9788173713682  a512.7bSHI  aShirali, Shailesh  aFirst Steps in Number Theoryba premier on divisibility  aIndiabUniversities pressc2001  aix,161p.c22cm.bPB  aIncludes Index