Gordon, D. E. Oskar Kokoschka and the visionary tradition: Donald E. Gordon. The turn of the century : German literature and art, 1890 - 1915.(1983).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGordon, Donald E. "Oskar Kokoschka and the Visionary Tradition: Donald E. Gordon." The Turn of the Century : German Literature and Art, 1890 - 1915.(1983) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रGordon, Donald E. "Oskar Kokoschka and the Visionary Tradition: Donald E. Gordon." The Turn of the Century : German Literature and Art, 1890 - 1915.(1983), .
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