MLA

Hornor, Thomas, 1785-1844. South side of St. Paul's Church Yard, St. Austin's Church and the end of Watling Street [graphic].. [approximately 1820]. https://collections.library.yale.edu/catalog/11001453.

APA, 6th edition

Hornor, Thomas, 1785-1844. ([approximately 1820])[South side of St. Paul's Church Yard, St. Austin's Church and the end of Watling Street [graphic].]. https://collections.library.yale.edu/catalog/11001453.