00306nam a2200109Ia 4500008004100000020001800041082001700059100002600076245004300102260004500145300000600190260313b        |||||||| |||| 00| 0 eng d  a9789380250007  a512bR658.IA  aRobinson, Derek J. S.  aAn introduction to abstract algebrab/  aNew Delhi:bHindustan Book Agency,c2003  a