The Environment, Our Natural Resources and Modern TechnologyThomas R. Degregori · First published 2002 · Latest edition 2008Open the Tome
Agriculture and modern technologyThomas R. DeGregori, Ralph Battles, Robert Thompson · First published 2000Open the Tome
Policy Studies in Developing Nations: Poverty Policy in Developing CountriesThomas R. Degregori · First published 1994Open the Tome
Technology and the economic development of the tropical African frontierThomas R. DeGregori · First published 1969Open the Tome
