MLA

Murphy, Gerald, 1888-1964. Duotang with artwork by Patrick Murphy. Box 15, folder 225. 1936 Summer. https://collections.library.yale.edu/catalog/32308337.

APA, 6th edition

Murphy, Gerald, 1888-1964. (["Box 15, folder 225"])(1936 Summer)[Duotang with artwork by Patrick Murphy]. https://collections.library.yale.edu/catalog/32308337.