Cite

Music/Le sylphe

MLA

Koch, Frederick R. (Frederick Robinson). Music/Le sylphe. Box 329, folder 1849. n.d.. https://collections.library.yale.edu/catalog/12218316.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 329, folder 1849"])(n.d.)[Music/Le sylphe]. https://collections.library.yale.edu/catalog/12218316.