Kuehn, K. G. (1997). Caught: The art of photography in the German Democratic Republic / Karl Gernot Kuehn. University of California Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKuehn, Karl Gernot. Caught: The Art of Photography in the German Democratic Republic / Karl Gernot Kuehn. Berkeley, Calif. [u.a.]: University of California Press, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKuehn, Karl Gernot. Caught: The Art of Photography in the German Democratic Republic / Karl Gernot Kuehn. University of California Press, 1997.
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