Cite

Alnwick. [blank] to William Davison, chemist, druggist, & apothecary

MLA

Davison, William, 1780-1858. Alnwick. [blank] to William Davison, chemist, druggist, & apothecary. [approximately 1821]. https://collections.library.yale.edu/catalog/33114295.

APA, 6th edition

Davison, William, 1780-1858. ([approximately 1821])[Alnwick. [blank] to William Davison, chemist, druggist, & apothecary]. https://collections.library.yale.edu/catalog/33114295.