MLA

Murphy, Gerald, 1888-1964. Gerald and Sara Murphy in costume at Étienne de Beaumont's "Automotive Ball" by Mondanités Dorys. Box 23, folder 411. 1924. https://collections.library.yale.edu/catalog/10603011.

APA, 6th edition

Murphy, Gerald, 1888-1964. (["Box 23, folder 411"])(1924)[Gerald and Sara Murphy in costume at Étienne de Beaumont's "Automotive Ball" by Mondanités Dorys]. https://collections.library.yale.edu/catalog/10603011.