Cite

"Presto"

MLA

Schwartz, Delmore, 1913-1966. "Presto". Box 3, folder 179. undated. https://collections.library.yale.edu/catalog/17405232.

APA, 6th edition

Schwartz, Delmore, 1913-1966. (["Box 3, folder 179"])(undated)["Presto"]. https://collections.library.yale.edu/catalog/17405232.