[Letter: Elihu Marvin to Nathan Hale, New London]
MLA
[Letter: Elihu Marvin to Nathan Hale, New London]. 1774. https://collections.library.yale.edu/catalog/2053406.
APA, 6th edition
[Letter: Elihu Marvin to Nathan Hale, New London]. (1774). [Correspondence, Manuscripts]. https://collections.library.yale.edu/catalog/2053406.