Guinness, Alec
MLA
Van Thal, Herbert, 1904-1983. Guinness, Alec. Box 1, folder 51. 1965 May 9. https://collections.library.yale.edu/catalog/16545955.
APA, 6th edition
Van Thal, Herbert, 1904-1983. (["Box 1, folder 51"])(1965 May 9)[Guinness, Alec]. https://collections.library.yale.edu/catalog/16545955.