Cite

Filippo Tommaso Marinetti. "Boccioni." No source, Verona. [05255-1]

MLA

Marinetti, F. T., 1876-1944. Filippo Tommaso Marinetti. "Boccioni." No source, Verona. [05255-1]. box 66, slide 75. no date. https://collections.library.yale.edu/catalog/10656974.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 66, slide 75"])(no date)[Filippo Tommaso Marinetti. "Boccioni." No source, Verona. [05255-1]]. https://collections.library.yale.edu/catalog/10656974.