000 00334nam a2200145Ia 4500
008 170101s1972 xx 000 0 und d
082 _a513.83 H86E
100 _aHU, Sze-Tsen
245 0 _aElements of genenral topology
260 _bBombay
_c1972
300 _a214p
650 _aTOPOLOGY
653 _aTOPOLOGY
942 _2ddc
_cB
999 _c71569
_d71569