000 00284nam a2200121Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a514 P9 MAT
100 _aArmstrong, M.A.
245 0 _aBasic Topology
260 _aNew Delhi
_bSpringer
_c2009
942 _cGB
999 _c34111
_d34111