MLA

Koch, Frederick R. (Frederick Robinson). Music/Le médecin malgré lui. Box 105, folder 1447. 1857. https://collections.library.yale.edu/catalog/2003567.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 105, folder 1447"])(1857)[Music/Le médecin malgré lui]. https://collections.library.yale.edu/catalog/2003567.