233. Carrara. FTM and others at the marble quarry. Stamped on verso and the date inscribed on verso.
MLA
Marinetti, F. T., 1876-1944. 233. Carrara. FTM and others at the marble quarry. Stamped on verso and the date inscribed on verso.. Box 51, folder 1953. 1934 May. https://collections.library.yale.edu/catalog/2009060.
APA, 6th edition
Marinetti, F. T., 1876-1944. (["Box 51, folder 1953"])(1934 May)[233. Carrara. FTM and others at the marble quarry. Stamped on verso and the date inscribed on verso.]. https://collections.library.yale.edu/catalog/2009060.