00342    a2200121   4500020001500000082001500015100001600030245006200046260005100108300001500159650002800174700001800202  a0749221631  a512.2bOPE  aCoates, Bob  aGroups & gemoetrybunit GR1 b properties of the integers  aMilton KeynesbThe Open Universityc1994g1994  a40p.c31cm  aGroups and group theory  aMargolis, Bob