MLA

Steinberg, Saul, 1914-1999. Untitled [Steinberg as a young boy in his uncle's watch and jewelry shop]. Box 534 (Oversize), folder 7201. 1979. https://collections.library.yale.edu/catalog/16855244.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 534 (Oversize), folder 7201"])(1979)[Untitled [Steinberg as a young boy in his uncle's watch and jewelry shop]]. https://collections.library.yale.edu/catalog/16855244.