MLA

Marinetti, F. T., 1876-1944. Jean Dargos. No title. Poesia. With "Una nueva escuela literaria: el futurismo" by E. Gomez Carrillo. [0085-1]. box 2, slide 5. no date. https://collections.library.yale.edu/catalog/10648260.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 2, slide 5"])(no date)[Jean Dargos. No title. Poesia. With "Una nueva escuela literaria: el futurismo" by E. Gomez Carrillo. [0085-1]]. https://collections.library.yale.edu/catalog/10648260.