Cite

"The Man Who Did Not Exist," story

MLA

Saltus, Edgar, 1855-1921. "The Man Who Did Not Exist," story. Box 4. undated. https://collections.library.yale.edu/catalog/17151264.

APA, 6th edition

Saltus, Edgar, 1855-1921. (["Box 4"])(undated)["The Man Who Did Not Exist," story]. https://collections.library.yale.edu/catalog/17151264.