000			00362nam a2200145Ia 4500
001			14853
008			170722s9999 xx 000 0 und d
100			_aPervin, William J.
245			_aFoundations of general topology /
260			_c1964.
490			_aAcademic Press textbooks in mathematics
653			_aMathematics
653			_aTopology
942			_cGEN
999			_c66362 _d66362