Cite

Song, mechanical reproduction of copyist's score

MLA

Hughes, Langston, 1902-1967. Song, mechanical reproduction of copyist's score. Box 390, folder 7237. n.d.. https://collections.library.yale.edu/catalog/17034106.

APA, 6th edition

Hughes, Langston, 1902-1967. (["Box 390, folder 7237"])(n.d.)[Song, mechanical reproduction of copyist's score]. https://collections.library.yale.edu/catalog/17034106.