MLA

Marinetti, F. T., 1876-1944. Filippo Tommaso Marinetti. “La Danse Futuriste.” L'Esprit Nouveau, 15 dec 1920. [2563-1]-[2565-1]. box 33, slide 23-25. 1920. https://collections.library.yale.edu/catalog/10652437.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 33, slide 23-25"])(1920)[Filippo Tommaso Marinetti. “La Danse Futuriste.” L'Esprit Nouveau, 15 dec 1920. [2563-1]-[2565-1]]. https://collections.library.yale.edu/catalog/10652437.