Cita APA

Whitford, F., & Hartley, K. (1981). Käthe Kollwitz 1867-1945: The graphic works. Kettle's Yard.

Citación estilo Chicago

Whitford, Frank, y Keith Hartley. Käthe Kollwitz 1867-1945: The Graphic Works. Cambridge: Kettle's Yard, 1981.

Cita MLA

Whitford, Frank, y Keith Hartley. Käthe Kollwitz 1867-1945: The Graphic Works. Kettle's Yard, 1981.