Adriani, G., Konnertz, W., Thomas, K., & Beuys, J. (1979). Joseph Beuys, life and works: Götz Adriani; Winfried Konnertz; Karin Thomas. Barron's Educational Ser..
Chicago-viite (17. p.)Adriani, Götz, Winfried Konnertz, Karin Thomas, ja Joseph Beuys. Joseph Beuys, Life and Works: Götz Adriani; Winfried Konnertz; Karin Thomas. Woodbury, N.Y. [u.a.]: Barron's Educational Ser., 1979.
MLA-viite (8. p.)Adriani, Götz, et al. Joseph Beuys, Life and Works: Götz Adriani; Winfried Konnertz; Karin Thomas. Barron's Educational Ser., 1979.
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