"A Chance to Say No": typescript, carbon
MLA
Purdy, James, 1914-2009. "A Chance to Say No": typescript, carbon. Box 12, folder 280. n.d.. https://collections.library.yale.edu/catalog/17197923.
APA, 6th edition
Purdy, James, 1914-2009. (["Box 12, folder 280"])(n.d.)["A Chance to Say No": typescript, carbon]. https://collections.library.yale.edu/catalog/17197923.