Cite

to "Amy" [Butler?]

MLA

Bryher, 1894-1983. to "Amy" [Butler?]. Box 70, folder 2695. n.d.. https://collections.library.yale.edu/catalog/17290844.

APA, 6th edition

Bryher, 1894-1983. (["Box 70, folder 2695"])(n.d.)[to "Amy" [Butler?]]. https://collections.library.yale.edu/catalog/17290844.