MLA

Darrot, Paul Jean Gaston, 1892-1958. [Soixante-quinze] 75th américain en action (U.S. Infantry, 75th regiment?). Box 3, folder 77. circa 1914-circa 1918. https://collections.library.yale.edu/catalog/10616927.

APA, 6th edition

Darrot, Paul Jean Gaston, 1892-1958. (["Box 3, folder 77"])(circa 1914-circa 1918)[[Soixante-quinze] 75th américain en action (U.S. Infantry, 75th regiment?)]. https://collections.library.yale.edu/catalog/10616927.