APA (7th ed.) Citation

Meckel, C., Weisner, U., & Kollwitz, H. (1967). Käthe Kollwitz: 1867-1967. Bad Godesberg: Inter Nationes.

Chicago Style (17th ed.) Citation

Meckel, Christoph, Ulrich Weisner, and Hans Kollwitz. Käthe Kollwitz: 1867-1967. Bad Godesberg: Inter Nationes, 1967.

MLA (8th ed.) Citation

Meckel, Christoph, et al. Käthe Kollwitz: 1867-1967. Bad Godesberg: Inter Nationes, 1967.