Cite

Music/Le mariage de Figaro

MLA

Koch, Frederick R. (Frederick Robinson). Music/Le mariage de Figaro. Box 172, folder 1514. 1852 Sep 15. https://collections.library.yale.edu/catalog/12234935.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 172, folder 1514"])(1852 Sep 15)[Music/Le mariage de Figaro]. https://collections.library.yale.edu/catalog/12234935.