Cita APA (7a ed.)

Baren, C. v., & Rix, B. (2003). Käthe Kollwitz: The art of compassion.

Cita Chicago Style (17a ed.)

Baren, Catherine van, y Brenda Rix. Käthe Kollwitz: The Art of Compassion. Toronto, 2003.

Cita MLA (8a ed.)

Baren, Catherine van, y Brenda Rix. Käthe Kollwitz: The Art of Compassion. 2003.