MLA

Upson, Bennett, 1809-1856. Family correspondence. Box 1, folder 1 - 5. 1836-1858. https://collections.library.yale.edu/catalog/32528714.

APA, 6th edition

Upson, Bennett, 1809-1856. (["Box 1, folder 1 - 5"])(1836-1858)[Family correspondence]. https://collections.library.yale.edu/catalog/32528714.