Vaughan, W., & Friedrich, C. D. (2004). Friedrich. London [u.a.]: Phaidon.
Chicago Style CitationVaughan, William, and Caspar David Friedrich. Friedrich. London [u.a.]: Phaidon, 2004.
MLA CitationVaughan, William, and Caspar David Friedrich. Friedrich. London [u.a.]: Phaidon, 2004.
Warning: These citations may not always be 100% accurate.