The social problems of an industrial civilization : with an appendix on the political problem /The political problem of industrial civilization ; The Modernization of a primitive community ; Change and its social consequences /Some notes on the psychology of Pierre Janet /The human problems of industrial civilisation /The social problems of an industrial civilization /Probleme industrieller Arbeitsbedingungen.The social problems of an industrial civilization.The social problems of an industrial civilization : with an app. on the political problem /