Cite

"Seurat's Sunday Afternoon Along the Seine"

MLA

Schwartz, Delmore, 1913-1966. "Seurat's Sunday Afternoon Along the Seine". Box 3, folder 182. undated. https://collections.library.yale.edu/catalog/17405234.

APA, 6th edition

Schwartz, Delmore, 1913-1966. (["Box 3, folder 182"])(undated)["Seurat's Sunday Afternoon Along the Seine"]. https://collections.library.yale.edu/catalog/17405234.