Blind leading the blind!
MLA
Harrington, Oliver W. (Oliver Wendell), 1912-1995. Blind leading the blind!. Box 14 (Oversize). undated. https://collections.library.yale.edu/catalog/33075450.
APA, 6th edition
Harrington, Oliver W. (Oliver Wendell), 1912-1995. (["Box 14 (Oversize)"])(undated)[Blind leading the blind!]. https://collections.library.yale.edu/catalog/33075450.