Cite

Thomas Gray to Norton Nicholls. London.

MLA

Nicholls, Norton, 1741?-1809. Thomas Gray to Norton Nicholls. London.. Box 1, folder 77. n.d.. https://collections.library.yale.edu/catalog/17439874.

APA, 6th edition

Nicholls, Norton, 1741?-1809. (["Box 1, folder 77"])(n.d.)[Thomas Gray to Norton Nicholls. London.]. https://collections.library.yale.edu/catalog/17439874.