"A History of the Boys and the Girls"
MLA
Schwartz, Delmore, 1913-1966. "A History of the Boys and the Girls". Box 5, folder 307-308. late 1950s. https://collections.library.yale.edu/catalog/17078946.
APA, 6th edition
Schwartz, Delmore, 1913-1966. (["Box 5, folder 307-308"])(late 1950s)["A History of the Boys and the Girls"]. https://collections.library.yale.edu/catalog/17078946.