Cite

The major part of the town of Portsmouth [graphic]

MLA

Dighton, Robert, 1752-1814, printmaker. The major part of the town of Portsmouth [graphic]. [August 1807]. https://collections.library.yale.edu/catalog/33185699.

APA, 6th edition

Dighton, Robert, 1752-1814, printmaker. ([August 1807])[The major part of the town of Portsmouth [graphic]]. https://collections.library.yale.edu/catalog/33185699.