Cite

Volume III:

MLA

Harkness, Mary Emma Stillman, 1874-1950. Volume III:. Box 1, folder 3. 1730-1812. https://collections.library.yale.edu/catalog/2064624.

APA, 6th edition

Harkness, Mary Emma Stillman, 1874-1950. (["Box 1, folder 3"])(1730-1812)[Volume III:]. https://collections.library.yale.edu/catalog/2064624.