Cite

Music/Lischen et Fritzchen

MLA

Koch, Frederick R. (Frederick Robinson). Music/Lischen et Fritzchen. Box 329, folder 1836. n.d.. https://collections.library.yale.edu/catalog/12218306.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 329, folder 1836"])(n.d.)[Music/Lischen et Fritzchen]. https://collections.library.yale.edu/catalog/12218306.