MLA

Marinetti, F. T., 1876-1944. Photo. Scene of Rivolta di Portici from "Macchinista Hopkins" by Max Brand. Stadtischen Opera, Berlin. [6942-1]. box 88, slide 2. no date. https://collections.library.yale.edu/catalog/10659650.

APA, 6th edition

Marinetti, F. T., 1876-1944. (["box 88, slide 2"])(no date)[Photo. Scene of Rivolta di Portici from "Macchinista Hopkins" by Max Brand. Stadtischen Opera, Berlin. [6942-1]]. https://collections.library.yale.edu/catalog/10659650.