Cite

Map of the County of Salop ... C. & J. Greeenwood. Engraved by J. & C. Walker.

MLA

Map of the County of Salop ... C. & J. Greeenwood. Engraved by J. & C. Walker. Greenwood & Co., 1830. https://collections.library.yale.edu/catalog/15309197.

APA, 6th edition

Map of the County of Salop ... C. & J. Greeenwood. Engraved by J. & C. Walker. (1830). [Maps]. Greenwood & Co., https://collections.library.yale.edu/catalog/15309197.