MLA

Van Vechten, Carl, 1880-1964. McBurnie, Beryl, wearing a costume from Martinique. Box 97 | Folder 1744. 1941 July 31. https://collections.library.yale.edu/catalog/2020858.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 97 | Folder 1744"])(1941 July 31)[McBurnie, Beryl, wearing a costume from Martinique]. https://collections.library.yale.edu/catalog/2020858.