Cite

Cary's Reduction of his 6 sheet map of the British Isles ...

MLA

Cary's Reduction of His 6 Sheet Map of the British Isles ... J. Cary, 1824. https://collections.library.yale.edu/catalog/15259710.

APA, 6th edition

Cary's Reduction of his 6 sheet map of the British Isles ... (1824). [Maps]. J. Cary, https://collections.library.yale.edu/catalog/15259710.