"Earliest draft": typescript, corrected
MLA
Carson, Rachel, 1907-1964. "Earliest draft": typescript, corrected. Box 1, folder 2. n.d.. https://collections.library.yale.edu/catalog/17410643.
APA, 6th edition
Carson, Rachel, 1907-1964. (["Box 1, folder 2"])(n.d.)["Earliest draft": typescript, corrected]. https://collections.library.yale.edu/catalog/17410643.