Cite

Anonymous. “F.T. Marinetti a une conferenza al 'Lyceum'.” No source, [1931]. [6867-1]

MLA

Marinetti, F. T., 1876-1944. Anonymous. “F.T. Marinetti a une conferenza al 'Lyceum'.” No source, [1931]. [6867-1]. box 87, slide 7. 1931. https://collections.library.yale.edu/catalog/10659537.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 87, slide 7"])(1931)[Anonymous. “F.T. Marinetti a une conferenza al 'Lyceum'.” No source, [1931]. [6867-1]]. https://collections.library.yale.edu/catalog/10659537.