MLA

Koch, Frederick R. (Frederick Robinson). Music/Façade (Entertainment): various movements, "S"-"W": score. Box 338, folder 1967-1970. [ca. 1922-79]. https://collections.library.yale.edu/catalog/2067430.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 338, folder 1967-1970"])([ca. 1922-79])[Music/Façade (Entertainment): various movements, "S"-"W": score]. https://collections.library.yale.edu/catalog/2067430.