Spurgeon, D.2007-11-131993-01-302007-11-131972http://hdl.handle.net/10625/21600Text1 digital file (6 p. : ill.)Application/pdfenLABOUR INTENSITYAPPROPRIATE TECHNOLOGYDEVELOPING COUNTRIESIDRCINTERMEDIATE TECHNOLOGYDEVELOPMENT RESEARCHRESEARCH PROJECTSMedia Article