Kuehn, K. G. (1997). Caught: The art of photography in the German Democratic Republic / Karl Gernot Kuehn. University of California Press.
Lua i Stíl Chicago (17ú heag.)Kuehn, Karl Gernot. Caught: The Art of Photography in the German Democratic Republic / Karl Gernot Kuehn. Berkeley, Calif. [u.a.]: University of California Press, 1997.
Lua MLA (8ú heag.)Kuehn, Karl Gernot. Caught: The Art of Photography in the German Democratic Republic / Karl Gernot Kuehn. University of California Press, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.