MLA

Yerkes, Robert M. (Robert Mearns), 1876-1956. Robert M. Yerkes: at various periods: Harvard, Washington, and New Haven. Box 137, folder 2292. Circa 1917-1954. https://collections.library.yale.edu/catalog/10186910.

APA, 6th edition

Yerkes, Robert M. (Robert Mearns), 1876-1956. (["Box 137, folder 2292"])(Circa 1917-1954)[Robert M. Yerkes: at various periods: Harvard, Washington, and New Haven]. https://collections.library.yale.edu/catalog/10186910.