MLA

Wescott, Glenway, 1901-1987. Lynes, George Platt. Box 69, folder 989-1007. 1934-46. https://collections.library.yale.edu/catalog/17065013.

APA, 6th edition

Wescott, Glenway, 1901-1987. (["Box 69, folder 989-1007"])(1934-46)[Lynes, George Platt]. https://collections.library.yale.edu/catalog/17065013.