Cite

Earl, Bill, in La Sonnambula, choreographed by George Balanchine

MLA

Van Vechten, Carl, 1880-1964. Earl, Bill, in La Sonnambula, choreographed by George Balanchine. Box 346, folder 4538. 1960 November 14. https://collections.library.yale.edu/catalog/2034043.

APA, 6th edition

Van Vechten, Carl, 1880-1964. (["Box 346, folder 4538"])(1960 November 14)[Earl, Bill, in La Sonnambula, choreographed by George Balanchine]. https://collections.library.yale.edu/catalog/2034043.