000 00277nam a2200109Ia 45e0
008 181001s1969 xx 000 0 und d
100 _aHalmos PR.
245 0 _aFourth bimensal vector spales
260 _bEeast-West
_c1969
300 _a199
942 _2ddc
_cBK
999 _c2237
_d2237