Cite

Handbook Map of Devon and Cornwall. Engraved by W. & A.K. Johnson, Edinburgh.

MLA

Handbook Map of Devon and Cornwall. Engraved by W. & A.K. Johnson, Edinburgh. J. Murray, 0AD. https://collections.library.yale.edu/catalog/15309144.

APA, 6th edition

Handbook Map of Devon and Cornwall. Engraved by W. & A.K. Johnson, Edinburgh. (0 C.E.). [Maps]. J. Murray, https://collections.library.yale.edu/catalog/15309144.