Cite

Maxim Gorki. “The Sage.” No source. [528-1]

MLA

Marinetti, F. T., 1876-1944. Maxim Gorki. “The Sage.” No source. [528-1]. box 7, slide 48. no date. https://collections.library.yale.edu/catalog/10649080.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 7, slide 48"])(no date)[Maxim Gorki. “The Sage.” No source. [528-1]]. https://collections.library.yale.edu/catalog/10649080.