"T" general
MLA
Van Thal, Herbert, 1904-1983. "T" general. Box 2, folder 123. 1953-76, n.d.. https://collections.library.yale.edu/catalog/16546027.
APA, 6th edition
Van Thal, Herbert, 1904-1983. (["Box 2, folder 123"])(1953-76, n.d.)["T" general]. https://collections.library.yale.edu/catalog/16546027.