Cita APA (7th ed.)

Geismeier, W. (1984). Caspar David Friedrich. Seemann.

Cita Chicago (17th ed.)

Geismeier, Willi. Caspar David Friedrich. Leipzig: Seemann, 1984.

Cita MLA (8th ed.)

Geismeier, Willi. Caspar David Friedrich. Seemann, 1984.