"H" general
MLA
Van Thal, Herbert, 1904-1983. "H" general. Box 1, folder 53. 1921-75. https://collections.library.yale.edu/catalog/16545957.
APA, 6th edition
Van Thal, Herbert, 1904-1983. (["Box 1, folder 53"])(1921-75)["H" general]. https://collections.library.yale.edu/catalog/16545957.