Cite

Music/Arrangements/Debussy, Pour le piano

MLA

Koch, Frederick R. (Frederick Robinson). Music/Arrangements/Debussy, Pour le piano. Box 332, folder 1889. 1922 Nov. https://collections.library.yale.edu/catalog/15947417.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 332, folder 1889"])(1922 Nov)[Music/Arrangements/Debussy, Pour le piano]. https://collections.library.yale.edu/catalog/15947417.