"Mr. Yeats at the Irish Literary Society"
MLA
Hackett, Francis, 1883-1962. "Mr. Yeats at the Irish Literary Society". GROUP 2010, folder F-1. n.d.. https://collections.library.yale.edu/catalog/2037014.
APA, 6th edition
Hackett, Francis, 1883-1962. (["GROUP 2010, folder F-1"])(n.d.)["Mr. Yeats at the Irish Literary Society"]. https://collections.library.yale.edu/catalog/2037014.