Cite

"Mappa Mundi," typescript, corrected

MLA

Butts, Mary, 1890-1937. "Mappa Mundi," typescript, corrected. Box 7, folder 131. [1937]. https://collections.library.yale.edu/catalog/31399110.

APA, 6th edition

Butts, Mary, 1890-1937. (["Box 7, folder 131"])([1937])["Mappa Mundi," typescript, corrected]. https://collections.library.yale.edu/catalog/31399110.