Ritchie, A. C. (1957). German art of the twentieth century. Museum of Modern Art.
Chicago Style (17th ed.) CitationRitchie, Andrew Carnduff. German Art of the Twentieth Century. New York: Museum of Modern Art, 1957.
MLA (9th ed.) CitationRitchie, Andrew Carnduff. German Art of the Twentieth Century. Museum of Modern Art, 1957.
Warning: These citations may not always be 100% accurate.