000 00250nam a2200109Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a512.22HALL:T
245 0 _aTheory Groups
260 _aLondon
_bMacmillan
_c19
942 _cREF
999 _c15081
_d15081