000 00282nam a2200121Ia 4500
008 221001s1970 xx 000 0 eng d
082 _a514 GAU
100 _aGautam, N. D.
245 0 _aGeneral topology
260 _aDelhi
_bS. Chand
_c1970
300 _avii, 356p.
942 _2ddc
_cBK
999 _c8614
_d8614