00675nam0-22002411i-450-990001136380403321000113638FED01000113638(Aleph)000113638FED0100011363820000920d1982----km-y0itay50------baengElementary topologya combinatorial and algebraic approachby BlackettLondon [etc.]Academic Press1982Blackett,Donald W.54533ITUNINARICAUNIMARCBK99000113638040332129-M-3221126MA1MA1Elementary topology345241UNINAING01