00980nam0-22003131i-450-990003215490403321000321549FED01000321549(Aleph)000321549FED0100032154920000920d1969----km-y0itay50------baitaITTechnology and the Economic Development of the Tropical African FrontierThomas R. De Gregori.ClevelandLondonThe Press of Case Western Reserve University1969.viii, 531 p.24 cmAfricaSviluppo economicoPaesi in via di sviluppoTecnologiaF/1.12F/3.2De Gregori,Thomas R.ITUNINARICAUNIMARCBK990003215490403321F/3.2 DEG043242SESSESTechnology and the Economic Development of the Tropical African Frontier455404UNINAING01