Maitriser le progrès - Piganiol, Pierre. (OLS)http://semarc/name/81363 (Éditions Gonthier, Laffont,, 1968)
Keywords: Progresso tecnico - Effetti sociali. (OLS)http://semarc/subject/13223; Progresso sociale. (OLS)http://semarc/subject/15894