000 00282nam a2200109 4500
082 _a512.2
_bHOW-I;1
100 _aHowie, John M
245 _aIntroduction to semigroup theory
260 _a London
_c1976
_bAcademic Press,
650 _aGroups-- Algebra-- Mathematics
942 _cBK
999 _c443974
_d443974