Harry and Rose Schwartz
MLA
Schwartz, Delmore, 1913-1966. Harry and Rose Schwartz. Box 23, folder 879. 1906-circa 1960. https://collections.library.yale.edu/catalog/2013596.
APA, 6th edition
Schwartz, Delmore, 1913-1966. (["Box 23, folder 879"])(1906-circa 1960)[Harry and Rose Schwartz]. https://collections.library.yale.edu/catalog/2013596.