MLA

Murphy, Gerald, 1888-1964. Drawings by Baoth Murphy. Box 15, folder 224. Before 1936. https://collections.library.yale.edu/catalog/32308317.

APA, 6th edition

Murphy, Gerald, 1888-1964. (["Box 15, folder 224"])(Before 1936)[Drawings by Baoth Murphy]. https://collections.library.yale.edu/catalog/32308317.