MLA

Marinetti, F. T., 1876-1944. Filippo Tommaso Marinetti, Emilio Settimelli, Mario Dessy, Armando Mazza. "BC Confetti futuristi." Vittorio Veneto. [1205-1]. box 16, slide 25. no date. https://collections.library.yale.edu/catalog/10650323.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 16, slide 25"])(no date)[Filippo Tommaso Marinetti, Emilio Settimelli, Mario Dessy, Armando Mazza. "BC Confetti futuristi." Vittorio Veneto. [1205-1]]. https://collections.library.yale.edu/catalog/10650323.