Yeats, John Butler
MLA
Gilman, Lawrence, 1878-1939. Yeats, John Butler. Box 1, folder 16. 1915 October 2. https://collections.library.yale.edu/catalog/2037024.
APA, 6th edition
Gilman, Lawrence, 1878-1939. (["Box 1, folder 16"])(1915 October 2)[Yeats, John Butler]. https://collections.library.yale.edu/catalog/2037024.