Cite

Collected papers

MLA

Backus, Isaac, 1724-1806. Collected papers. box 9, folder 12. 1771 January, n.d.. https://collections.library.yale.edu/catalog/33571974.

APA, 6th edition

Backus, Isaac, 1724-1806. (["box 9, folder 12"])(1771 January, n.d.)[Collected papers]. https://collections.library.yale.edu/catalog/33571974.