MLA

Van Vechten, Carl, 1880-1964. Burr, Mary, as Suzanne Duval, in Paint Your Wagon, with book and lyrics by Alan J. Lerner and music by Frederick Loewe. Box 395, folder 6090. 1952 January 2. https://collections.library.yale.edu/catalog/33271265.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 395, folder 6090"])(1952 January 2)[Burr, Mary, as Suzanne Duval, in Paint Your Wagon, with book and lyrics by Alan J. Lerner and music by Frederick Loewe]. https://collections.library.yale.edu/catalog/33271265.