Cite

A new map of South Wales ... Thomas Dix Surveyor ...

MLA

A New Map of South Wales ... Thomas Dix Surveyor ... William Darton, 1820. https://collections.library.yale.edu/catalog/15352138.

APA, 6th edition

A new map of South Wales ... Thomas Dix Surveyor ... (1820). [Maps]. William Darton, https://collections.library.yale.edu/catalog/15352138.