Music/Crown Imperial: score
MLA
Koch, Frederick R. (Frederick Robinson). Music/Crown Imperial: score. Box 203, folder 1545. [1937]. https://collections.library.yale.edu/catalog/2077442.
APA, 6th edition
Koch, Frederick R. (Frederick Robinson). (["Box 203, folder 1545"])([1937])[Music/Crown Imperial: score]. https://collections.library.yale.edu/catalog/2077442.