MLA

Talma, Louise, 1906-1996. Talma, Louise, and Thornton Wilder. Box 35, folder 219. 1976. https://collections.library.yale.edu/catalog/2054115.

APA, 6th edition

Talma, Louise, 1906-1996. (["Box 35, folder 219"])(1976)[Talma, Louise, and Thornton Wilder]. https://collections.library.yale.edu/catalog/2054115.