De Mille, Agnes, in Hell on Wheels, 1863, which she choreographed
MLA
Van Vechten, Carl, 1880-1964. De Mille, Agnes, in Hell on Wheels, 1863, which she choreographed. Box 343 | Folder 4463. 1940 April 8. https://collections.library.yale.edu/catalog/2032547.
APA, 6th edition
Van Vechten, Carl, 1880-1964. (["Box 343 | Folder 4463"])(1940 April 8)[De Mille, Agnes, in Hell on Wheels, 1863, which she choreographed]. https://collections.library.yale.edu/catalog/2032547.