Cite

44. Soldiers around a cannon.

MLA

Marinetti, F. T., 1876-1944. 44. Soldiers around a cannon.. Box 49, folder 1939. ca. 1917. https://collections.library.yale.edu/catalog/2008606.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["Box 49, folder 1939"])(ca. 1917)[44. Soldiers around a cannon.]. https://collections.library.yale.edu/catalog/2008606.