"Practical Eugenics" corres.
MLA
Huntington, Ellsworth, 1876-1947. "Practical Eugenics" corres.. Box 31, folder 311. 1938. https://collections.library.yale.edu/catalog/32506286.
APA, 6th edition
Huntington, Ellsworth, 1876-1947. (["Box 31, folder 311"])(1938)["Practical Eugenics" corres.]. https://collections.library.yale.edu/catalog/32506286.