MLA

Steinberg, Saul, 1914-1999. Herscovici, Mina. Box 22, folder 408. 1966–1976. https://collections.library.yale.edu/catalog/10034234.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 22, folder 408"])(1966–1976)[Herscovici, Mina]. https://collections.library.yale.edu/catalog/10034234.