Beuys, J., & Halpern, J. (2006). Joseph Beuys: Transformer <DVD-Video>: Produced and directed by John Halpern (Special ed.). MDS Productions.
Chicago-Zitierstil (17. Ausg.)Beuys, Joseph, und John Halpern. Joseph Beuys: Transformer <DVD-Video>: Produced and Directed by John Halpern. Special ed. New York: MDS Productions, 2006.
MLA-Zitierstil (8. Ausg.)Beuys, Joseph, und John Halpern. Joseph Beuys: Transformer <DVD-Video>: Produced and Directed by John Halpern. Special ed. MDS Productions, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.