MLA

Davis, Charles T. (Charles Twitchell), 1918-1981. Army records. Box 29. 1931-1980. https://collections.library.yale.edu/catalog/31963955.

APA, 6th edition

Davis, Charles T. (Charles Twitchell), 1918-1981. (["Box 29"])(1931-1980)[Army records]. https://collections.library.yale.edu/catalog/31963955.