APA (7th ed.) Citation

Young, J. H. (1840). Map of Great Britain and Ireland. [publisher not identified].

Chicago Style (17th ed.) Citation

Young, J. H. Map of Great Britain and Ireland. [United States?]: [publisher not identified], 1840.

MLA (9th ed.) Citation

Young, J. H. Map of Great Britain and Ireland. [publisher not identified], 1840.