MLA

Marinetti, F. T., 1876-1944. Adrien Frissant. No title. Poesia. With untitled article on "Roi Bombance." [0042-1]. box 1, slide 42. no date. https://collections.library.yale.edu/catalog/10648191.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 1, slide 42"])(no date)[Adrien Frissant. No title. Poesia. With untitled article on "Roi Bombance." [0042-1]]. https://collections.library.yale.edu/catalog/10648191.