Berghahn, K. L., & Grimm, R. (1990). Utopian vision, technological innovation and poetic imagination. Winter.
Lua i Stíl Chicago (17ú heag.)Berghahn, Klaus L., agus Reinhold Grimm. Utopian Vision, Technological Innovation and Poetic Imagination. Heidelberg: Winter, 1990.
Lua MLA (8ú heag.)Berghahn, Klaus L., agus Reinhold Grimm. Utopian Vision, Technological Innovation and Poetic Imagination. Winter, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.