APA (7th ed.) Citation

Friedrich, C. D., & Schmied, W. (1992). Caspar David Friedrich: Wieland Schmied (Sonderausg.).

Chicago Style (17th ed.) Citation

Friedrich, Caspar David, and Wieland Schmied. Caspar David Friedrich: Wieland Schmied. Sonderausg. 1992.

MLA (8th ed.) Citation

Friedrich, Caspar David, and Wieland Schmied. Caspar David Friedrich: Wieland Schmied. Sonderausg. 1992.

Warning: These citations may not always be 100% accurate.