title: [Léon Chagnaud: an innovative entrepreneur in the public works sector during the late 19th and early 20th centuries].
authors.forename: A
authors.initials: A
authors.lastname: Berthonnet
mesh_terms: D002958:City Planning / Q000191:economics / Q000193:education / Q000266:history; D004738:Engineering / Q000191:economics / Q000193:education / Q000266:history; D005602:France / Q000208:ethnology; D049672:History, 19th Century; D049673:History, 20th Century; D007449:Investments / Q000191:economics / Q000266:history; D011633:Public Facilities / Q000191:economics / Q000266:history; D011634:Public Health / Q000191:economics / Q000193:education / Q000266:history; D012499:Sanitation / Q000191:economics / Q000266:history; D014186:Transportation / Q000191:economics / Q000266:history; D014506:Urban Renewal / Q000191:economics / Q000193:education / Q000266:history / Q000331:legislation & jurisprudence