MLA

Scheuer, Steven H., 1926-2014. undated. Box 97, folder 9. circa 1953-1963. https://collections.library.yale.edu/catalog/17101439.

APA, 6th edition

Scheuer, Steven H., 1926-2014. (["Box 97, folder 9"])(circa 1953-1963)[undated]. https://collections.library.yale.edu/catalog/17101439.