APA (7. basım) Alıntı

(1969). German Expressionist watercolors: From the collections of the Wallraff-Richartz Museum, Cologne.

Chicago Style (17. basım) Atıf

German Expressionist Watercolors: From the Collections of the Wallraff-Richartz Museum, Cologne. Washington, D.C, 1969.

MLA (8th ed.) Atıf

German Expressionist Watercolors: From the Collections of the Wallraff-Richartz Museum, Cologne. 1969.