MLA

Schieffelin, Jacob, 1793-1880. Correspondence. Box 3, folder 53. 1846-47. https://collections.library.yale.edu/catalog/17441533.

APA, 6th edition

Schieffelin, Jacob, 1793-1880. (["Box 3, folder 53"])(1846-47)[Correspondence]. https://collections.library.yale.edu/catalog/17441533.