MLA

Marinetti, F. T., 1876-1944. Anonymous. Invitation to a banquet organized for Marinetti by Martin Fierro, 16 June 1926. [4504-1]. box 57, slide 44. 1926. https://collections.library.yale.edu/catalog/10655864.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 57, slide 44"])(1926)[Anonymous. Invitation to a banquet organized for Marinetti by Martin Fierro, 16 June 1926. [4504-1]]. https://collections.library.yale.edu/catalog/10655864.