Cite

Procter, Mrs., autograph letter, signed

MLA

James, Henry, 1843-1916. Procter, Mrs., autograph letter, signed. Box 7. undated. https://collections.library.yale.edu/catalog/16858173.

APA, 6th edition

James, Henry, 1843-1916. (["Box 7"])(undated)[Procter, Mrs., autograph letter, signed]. https://collections.library.yale.edu/catalog/16858173.