MLA

Pound, Ezra, 1885-1972. "Madame ye ben of beaute shryne" (Chaucer): typescript. Box 103, folder 4295. n.d.. https://collections.library.yale.edu/catalog/17122757.

APA, 6th edition

Pound, Ezra, 1885-1972. (["Box 103, folder 4295"])(n.d.)["Madame ye ben of beaute shryne" (Chaucer): typescript]. https://collections.library.yale.edu/catalog/17122757.