"My educated uncle says we're upper class because we still have a roof over our heads!"
MLA
Harrington, Oliver W. (Oliver Wendell), 1912-1995. "My educated uncle says we're upper class because we still have a roof over our heads!". Box 35 (Oversize). undated. https://collections.library.yale.edu/catalog/33076409.
APA, 6th edition
Harrington, Oliver W. (Oliver Wendell), 1912-1995. (["Box 35 (Oversize)"])(undated)["My educated uncle says we're upper class because we still have a roof over our heads!"]. https://collections.library.yale.edu/catalog/33076409.