MLA

Marinetti, F. T., 1876-1944. Filippo Tommaso Marinetti. “Prefazione a 'Iniezioni a Don Abbondio'.” Corrected typed manuscript. [10604-1]-[10605-1]. box 133, slide 64-65. no date. https://collections.library.yale.edu/catalog/10666830.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 133, slide 64-65"])(no date)[Filippo Tommaso Marinetti. “Prefazione a 'Iniezioni a Don Abbondio'.” Corrected typed manuscript. [10604-1]-[10605-1]]. https://collections.library.yale.edu/catalog/10666830.