MLA

Van Vechten, Carl, 1880-1964. Park Palace Ballroom, cocktail dansante. Box 111 | Folder 2089. 1951 May 20. https://collections.library.yale.edu/catalog/2020616.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 111 | Folder 2089"])(1951 May 20)[Park Palace Ballroom, cocktail dansante]. https://collections.library.yale.edu/catalog/2020616.