Mother of Us All.
MLA
Thomson, Virgil, 1896-1989. Mother of Us All.. Box 29A/143, folder 134. 1947 May.. https://collections.library.yale.edu/catalog/32501372.
APA, 6th edition
Thomson, Virgil, 1896-1989. (["Box 29A/143, folder 134"])(1947 May.)[Mother of Us All.]. https://collections.library.yale.edu/catalog/32501372.