APA (7. basım) Alıntı

Schmied, W. (1975). Caspar David Friedrich: Wieland Schmied (1.). DuMont.

Chicago Style (17. basım) Atıf

Schmied, Wieland. Caspar David Friedrich: Wieland Schmied. 1. Köln: DuMont, 1975.

MLA (8th ed.) Atıf

Schmied, Wieland. Caspar David Friedrich: Wieland Schmied. 1. DuMont, 1975.