00354    a2200145   4500020001600000082001500016100002100031245002800052250000900080260005100089300002200140650001800162650001600180650001200196  a97873198366  a512.7bROB  aRobbins, Neville  aBeginning number theory  a2nd.  aNew DelhibNarosa Publishing Housec2006g2006  axii, 338p.c24cm.  aNUMBER THEORY  aMATHEMATICS  aALGEBRA