000 00351nam a2200157Ia 4500
008 180626s9999 xx 000 0 und d
082 _a514 H86e
100 _aHu, Sze-Tsen
245 0 _aElemnts of general topology
260 _aCalifornia
260 _bHolden Daym Inc.
260 _c1970
300 _a214
650 _aTopology
942 _cBK
999 _c33251
_d33251