Kurt Schwitters. “Die Zwiebel.” Der Sturm, Oct 1919. [1597-1]
MLA
Kurt Schwitters. “Die Zwiebel.” Der Sturm, Oct 1919. [1597-1]. 0AD. https://collections.library.yale.edu/catalog/10650834.
APA, 6th edition
Kurt Schwitters. “Die Zwiebel.” Der Sturm, Oct 1919. [1597-1]. (0 C.E.). [Scrapbooks]. https://collections.library.yale.edu/catalog/10650834.