"The Man-of-War Bird," holograph manuscript
MLA
Whitman, Walt, 1819-1892. "The Man-of-War Bird," holograph manuscript. Box 3, folder 134. n.d.. https://collections.library.yale.edu/catalog/2001529.
APA, 6th edition
Whitman, Walt, 1819-1892. (["Box 3, folder 134"])(n.d.)["The Man-of-War Bird," holograph manuscript]. https://collections.library.yale.edu/catalog/2001529.