MLA

Steinberg, Saul, 1914-1999. Gjon Mili photographs. Box 143, folder 2679. circa 1970s. https://collections.library.yale.edu/catalog/10186410.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 143, folder 2679"])(circa 1970s)[Gjon Mili photographs]. https://collections.library.yale.edu/catalog/10186410.