APA (7th ed.) Citation

Altner, M., & Köpcke, A. (2003). Art is work, work is art: Arthur Köpcke zum 75. Geburtstag.

Chicago Style (17th ed.) Citation

Altner, Marvin, and Arthur Köpcke. Art Is Work, Work Is Art: Arthur Köpcke Zum 75. Geburtstag. Hamburg, 2003.

MLA (8th ed.) Citation

Altner, Marvin, and Arthur Köpcke. Art Is Work, Work Is Art: Arthur Köpcke Zum 75. Geburtstag. 2003.

Warning: These citations may not always be 100% accurate.