00361nam a2200133 a 450000500170000002000150001708200150003210000210004724500340006826000370010230000210013949000460016070000210020620251203111621.0  a1584889373  a512.7bERI  aErickson, Martin  aIntroduction to number theory  aNew YorkbTaylor & Francisc2008  a521p.c22cm.bPB  aDiscrete Mathematics and its applications  aVazzana, Anthony