00700nam0-22002531i-450-990001141870403321000114187FED01000114187(Aleph)000114187FED0100011418720000920d1980----km-y0itay50------baengHOMOTOPY theoryby Crabb.Cambridge [etc.]Cambridge University Press1980London Mathematical Society lecture note series44Crabb,M.C.54700ITUNINARICAUNIMARCBK990001141870403321C-9-(4420413MA1MA1HOMOTOPY theory344066UNINAING01