MLA

Wilfred, Thomas, 1889-1968. General. Box 5, folder 86-92. 1924-1937. https://collections.library.yale.edu/catalog/10019541.

APA, 6th edition

Wilfred, Thomas, 1889-1968. (["Box 5, folder 86-92"])(1924-1937)[General]. https://collections.library.yale.edu/catalog/10019541.