Campbell, J. Social idealism and cultural reform in the German arts and crafts 1900 - 1914: Joan Campbell. The turn of the century : German literature and art, 1890 - 1915.(1983).

Campbell, Joan. "Social Idealism and Cultural Reform in the German Arts and Crafts 1900 - 1914: Joan Campbell." The Turn of the Century : German Literature and Art, 1890 - 1915.(1983) .

Campbell, Joan. "Social Idealism and Cultural Reform in the German Arts and Crafts 1900 - 1914: Joan Campbell." The Turn of the Century : German Literature and Art, 1890 - 1915.(1983), .