Cite

Music/La duchesse d'Alba: draft

MLA

Koch, Frederick R. (Frederick Robinson). Music/La duchesse d'Alba: draft. Box 328, folder 1829. n.d.. https://collections.library.yale.edu/catalog/12215027.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 328, folder 1829"])(n.d.)[Music/La duchesse d'Alba: draft]. https://collections.library.yale.edu/catalog/12215027.