Cite

Balfour, John

MLA

Byron, Robert, 1905-1941. Balfour, John. Box 7, folder 95. undated. https://collections.library.yale.edu/catalog/17464833.

APA, 6th edition

Byron, Robert, 1905-1941. (["Box 7, folder 95"])(undated)[Balfour, John]. https://collections.library.yale.edu/catalog/17464833.