Cite

Untitled [Gray spiral-bound "De Luxe" sketchbook]

MLA

Steinberg, Saul, 1914-1999. Untitled [Gray spiral-bound "De Luxe" sketchbook]. Box 88, folder 1951. circa 1952. https://collections.library.yale.edu/catalog/9998721.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 88, folder 1951"])(circa 1952)[Untitled [Gray spiral-bound "De Luxe" sketchbook]]. https://collections.library.yale.edu/catalog/9998721.