Cite

"Intervention"

MLA

Schwartz, Delmore, 1913-1966. "Intervention". Box 3, folder 171. undated. https://collections.library.yale.edu/catalog/17078932.

APA, 6th edition

Schwartz, Delmore, 1913-1966. (["Box 3, folder 171"])(undated)["Intervention"]. https://collections.library.yale.edu/catalog/17078932.