Cite

Cooper, William from Hannah Cooper Pomeroy

MLA

Cooper, James Fenimore, 1789-1851. Cooper, William from Hannah Cooper Pomeroy. Box 13, folder 376. 1888. https://collections.library.yale.edu/catalog/17073673.

APA, 6th edition

Cooper, James Fenimore, 1789-1851. (["Box 13, folder 376"])(1888)[Cooper, William from Hannah Cooper Pomeroy]. https://collections.library.yale.edu/catalog/17073673.