Correspondence
MLA
Salsbury, Nathan, 1846-1902. Correspondence. Box 1, folder 15. 1921-22. https://collections.library.yale.edu/catalog/17060013.
APA, 6th edition
Salsbury, Nathan, 1846-1902. (["Box 1, folder 15"])(1921-22)[Correspondence]. https://collections.library.yale.edu/catalog/17060013.