MLA

Marinetti, F. T., 1876-1944. Photo of Marinetti in Barcelona: Exposicion de obras de vanguardia. 1929. [5555-1]. box 70, slide 55. 1929. https://collections.library.yale.edu/catalog/10657463.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 70, slide 55"])(1929)[Photo of Marinetti in Barcelona: Exposicion de obras de vanguardia. 1929. [5555-1]]. https://collections.library.yale.edu/catalog/10657463.