"Death of a Salesman"
MLA
Miller, Arthur, 1915-2005. "Death of a Salesman". Box 14, folder GROUP 277, F-1. 1948 Sep. https://collections.library.yale.edu/catalog/16301938.
APA, 6th edition
Miller, Arthur, 1915-2005. (["Box 14, folder GROUP 277, F-1"])(1948 Sep)["Death of a Salesman"]. https://collections.library.yale.edu/catalog/16301938.