Schmied, W., & Friedrich, C. D. (2002). Caspar David Friedrich. Köln: DuMont.
Chicago Style CitationSchmied, Wieland, and Caspar David Friedrich. Caspar David Friedrich. Köln: DuMont, 2002.
MLA CitationSchmied, Wieland, and Caspar David Friedrich. Caspar David Friedrich. Köln: DuMont, 2002.
Warning: These citations may not always be 100% accurate.