MLA

Van Vechten, Carl, 1880-1964. Orchidée. Box 370 | Folder 5250. 1933 October 11. https://collections.library.yale.edu/catalog/10000550.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 370 | Folder 5250"])(1933 October 11)[Orchidée]. https://collections.library.yale.edu/catalog/10000550.