Photographs: “Far older than telegraphy: signal drums and gongs of Africa.” No source. With “Native African telegraphy” by E. Torday. [3842-1]
MLA
Marinetti, F. T., 1876-1944. Photographs: “Far older than telegraphy: signal drums and gongs of Africa.” No source. With “Native African telegraphy” by E. Torday. [3842-1]. box 49, slide 22. no date. https://collections.library.yale.edu/catalog/10654791.
APA, 6th edition
Marinetti, F. T., 1876-1944. (["box 49, slide 22"])(no date)[Photographs: “Far older than telegraphy: signal drums and gongs of Africa.” No source. With “Native African telegraphy” by E. Torday. [3842-1]]. https://collections.library.yale.edu/catalog/10654791.
