Cite

"A Carol Closing Sixty-Nine," galley proof

MLA

Whitman, Walt, 1819-1892. "A Carol Closing Sixty-Nine," galley proof. Box 1, folder 45. n.d.. https://collections.library.yale.edu/catalog/2053679.

APA, 6th edition

Whitman, Walt, 1819-1892. (["Box 1, folder 45"])(n.d.)["A Carol Closing Sixty-Nine," galley proof]. https://collections.library.yale.edu/catalog/2053679.