Jackman, Harold
MLA
Thurman, Wallace, 1902-1934. Jackman, Harold. Box 1, folder 4. 1928-34, n.d.. https://collections.library.yale.edu/catalog/16732568.
APA, 6th edition
Thurman, Wallace, 1902-1934. (["Box 1, folder 4"])(1928-34, n.d.)[Jackman, Harold]. https://collections.library.yale.edu/catalog/16732568.