206. FTM in profile before the Sphinx.
MLA
Marinetti, F. T., 1876-1944. 206. FTM in profile before the Sphinx.. Box 50, folder 1950. ca. 1933. https://collections.library.yale.edu/catalog/2008935.
APA, 6th edition
Marinetti, F. T., 1876-1944. (["Box 50, folder 1950"])(ca. 1933)[206. FTM in profile before the Sphinx.]. https://collections.library.yale.edu/catalog/2008935.