Volume VII:
MLA
Harkness, Mary Emma Stillman, 1874-1950. Volume VII:. Box 2, folder 7. 1730-1812. https://collections.library.yale.edu/catalog/2077081.
APA, 6th edition
Harkness, Mary Emma Stillman, 1874-1950. (["Box 2, folder 7"])(1730-1812)[Volume VII:]. https://collections.library.yale.edu/catalog/2077081.