Cite

Argent. "Mammon." No source. In English. [00141-1]

MLA

Marinetti, F. T., 1876-1944. Argent. "Mammon." No source. In English. [00141-1]. box 2, slide 61. no date. https://collections.library.yale.edu/catalog/10648386.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 2, slide 61"])(no date)[Argent. "Mammon." No source. In English. [00141-1]]. https://collections.library.yale.edu/catalog/10648386.