Search Results       Your search for [subject]Ruhr Valley (Germany) -- Economic conditions returned 1 record.           The Ruhr : a study in historical and economic geography. by Pounds, Norman John Greville; London: Faber and Faber, 1952. Subject: Ruhr Valley (Germany) -- Economic conditions; Mineral industries -- Germany -- Ruhr Valley.          Add to Book Cart Relevance: 38.19%