Cite

Music/Poèmes de Baudelaire. Le balcon

MLA

Koch, Frederick R. (Frederick Robinson). Music/Poèmes de Baudelaire. Le balcon. Box 320, folder 1707. 1888 Jan. https://collections.library.yale.edu/catalog/17341487.

APA, 6th edition

Koch, Frederick R. (Frederick Robinson). (["Box 320, folder 1707"])(1888 Jan)[Music/Poèmes de Baudelaire. Le balcon]. https://collections.library.yale.edu/catalog/17341487.