MLA

Wescott, Glenway, 1901-1987. Miller, Christian William, Jr.. Box 78, folder 1158-1163. 1960-88, n.d.. https://collections.library.yale.edu/catalog/2065892.

APA, 6th edition

Wescott, Glenway, 1901-1987. (["Box 78, folder 1158-1163"])(1960-88, n.d.)[Miller, Christian William, Jr.]. https://collections.library.yale.edu/catalog/2065892.