MLA

Wilder, Thornton, 1897-1975. Correspondence. Box 5, folder 93-101. 1928-29. https://collections.library.yale.edu/catalog/17071769.

APA, 6th edition

Wilder, Thornton, 1897-1975. (["Box 5, folder 93-101"])(1928-29)[Correspondence]. https://collections.library.yale.edu/catalog/17071769.