"Kingdom of Poetry"
MLA
Schwartz, Delmore, 1913-1966. "Kingdom of Poetry". Box 3, folder 199. 1938-1958. https://collections.library.yale.edu/catalog/17405243.
APA, 6th edition
Schwartz, Delmore, 1913-1966. (["Box 3, folder 199"])(1938-1958)["Kingdom of Poetry"]. https://collections.library.yale.edu/catalog/17405243.