Beuys, J., & Halpern, J. (2006). Joseph Beuys: Transformer <DVD-Video>: Produced and directed by John Halpern (Special ed.). MDS Productions.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBeuys, Joseph, और John Halpern. Joseph Beuys: Transformer <DVD-Video>: Produced and Directed by John Halpern. Special ed. New York: MDS Productions, 2006.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBeuys, Joseph, और John Halpern. Joseph Beuys: Transformer <DVD-Video>: Produced and Directed by John Halpern. Special ed. MDS Productions, 2006.
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