MLA

Marinetti, F. T., 1876-1944. Page following Marinetti article about Prigionieri in Il Teatro, mar 1926. [4050-1]. box 51, slide 70. 1926. https://collections.library.yale.edu/catalog/10655152.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 51, slide 70"])(1926)[Page following Marinetti article about Prigionieri in Il Teatro, mar 1926. [4050-1]]. https://collections.library.yale.edu/catalog/10655152.