00287nam a2200121Ia 4500020001800000082001700018100002100035245003500056260003900091300002500130500000500155700000500160  a9789380250311  a512bB675.IG  aBogopolski, Oleg  aIntroduction to group theoryb  aIndiabHindustan Book agencyc2008  ax, 177p. Bibl. Index  a  a