Correspondence
MLA
Hodgson, Ralph, 1871-1962. Correspondence. Box 20, folder 407-408. 1975, n.d.. https://collections.library.yale.edu/catalog/10259993.
APA, 6th edition
Hodgson, Ralph, 1871-1962. (["Box 20, folder 407-408"])(1975, n.d.)[Correspondence]. https://collections.library.yale.edu/catalog/10259993.