"Dorpen." . . "Villages." . . "Sociology, Rural." . . . . "Ländlicher Raum." . . . "Rural communities : Problems, methods and types of research" . . . . . "Rural communities : problems, methods and types of research" . . "Rural communities : problems, methods and types of research"@en . . "Rural communities: problems, methods and types of research" . . . "Rural communities: problems, methods and types of research. Paris, UNESCO, 1958"@en . . . "Bibliography"@en . . . . . . . . . . "Rural communities" . . . . . . . . . . "Rural communities : problems methods and types of research" . . . . . . . .