MLA

Hitchcock, Samuel J. (Samuel Johnson), 1786-1845. Papers concerning the Farmington Canal Company. Box 8, folder 20-22. 1825-1840. https://collections.library.yale.edu/catalog/2053965.

APA, 6th edition

Hitchcock, Samuel J. (Samuel Johnson), 1786-1845. (["Box 8, folder 20-22"])(1825-1840)[Papers concerning the Farmington Canal Company]. https://collections.library.yale.edu/catalog/2053965.