MLA

Nicholls, Norton, 1741?-1809. Norton Nicholls to Jane Floyer Nicholls. Ditchleys. Concerns family; gardening. Box 2, folder 214. 1774 Apr 7. https://collections.library.yale.edu/catalog/17440011.

APA, 6th edition

Nicholls, Norton, 1741?-1809. (["Box 2, folder 214"])(1774 Apr 7)[Norton Nicholls to Jane Floyer Nicholls. Ditchleys. Concerns family; gardening]. https://collections.library.yale.edu/catalog/17440011.