MLA

Williams, Jonathan, 1929-2008. T1321-T1621. Box 40. 1976-1994. https://collections.library.yale.edu/catalog/2051362.

APA, 6th edition

Williams, Jonathan, 1929-2008. (["Box 40"])(1976-1994)[T1321-T1621]. https://collections.library.yale.edu/catalog/2051362.