Cita APA (7th ed.)

Gohr, S. (2005). George Grosz: Collagen, Collages ; 1928-1959.

Cita Chicago (17th ed.)

Gohr, Siegfried. George Grosz: Collagen, Collages ; 1928-1959. München, 2005.

Cita MLA (8th ed.)

Gohr, Siegfried. George Grosz: Collagen, Collages ; 1928-1959. 2005.