MLA

Wescott, Glenway, 1901-1987. Shawe-Taylor, Desmond. Box 100, folder 1510. 1953-87, n.d.. https://collections.library.yale.edu/catalog/17065021.

APA, 6th edition

Wescott, Glenway, 1901-1987. (["Box 100, folder 1510"])(1953-87, n.d.)[Shawe-Taylor, Desmond]. https://collections.library.yale.edu/catalog/17065021.