Letter : Philadelphia, to N. B. Devereaux, Esq.
MLA
Greenwood, Grace, 1823-1904. Letter : Philadelphia, to N. B. Devereaux, Esq.. Box 34, folder GROUP 555, F-1. 1867 Dec [12?]. https://collections.library.yale.edu/catalog/32308118.
APA, 6th edition
Greenwood, Grace, 1823-1904. (["Box 34, folder GROUP 555, F-1"])(1867 Dec [12?])[Letter : Philadelphia, to N. B. Devereaux, Esq.]. https://collections.library.yale.edu/catalog/32308118.