Cite

volume 12

MLA

Backus, Isaac, 1724-1806. volume 12. Box 1, folder 9. 1789 June 21–1796 December 28. https://collections.library.yale.edu/catalog/33297947.

APA, 6th edition

Backus, Isaac, 1724-1806. (["Box 1, folder 9"])(1789 June 21–1796 December 28)[volume 12]. https://collections.library.yale.edu/catalog/33297947.