000 00307nam a2200121Ia 4500
008 190709s9999 xx 000 0 und d
082 _a512.89 H18
100 _aHalmos, Paul R
245 0 _aLectures on boolean algebras
260 _aNew york
_bD Van nostrand company i
_c1963
300 _a147
942 _cBK
999 _c39917
_d39917