Cite

G. Van Wetter. No title. No source. In French. [2264-1]

MLA

Marinetti, F. T., 1876-1944. G. Van Wetter. No title. No source. In French. [2264-1]. box 29, slide 44. no date. https://collections.library.yale.edu/catalog/10651853.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 29, slide 44"])(no date)[G. Van Wetter. No title. No source. In French. [2264-1]]. https://collections.library.yale.edu/catalog/10651853.