Allen, Donald
MLA
Williams, William Carlos, 1883-1963. Allen, Donald. Box 1, folder 13. 1957-1960. https://collections.library.yale.edu/catalog/17049439.
APA, 6th edition
Williams, William Carlos, 1883-1963. (["Box 1, folder 13"])(1957-1960)[Allen, Donald]. https://collections.library.yale.edu/catalog/17049439.