A geological map of England, Wales, and part of Scotland, showing also the inland navigation, with the railroads & principal roads / by J. & C. Walker.
MLA
J. & C. Walker (Firm). "A geological map of England, Wales, and part of Scotland, showing also the inland navigation, with the railroads & principal roads / by J. & C. Walker.." Hargrett Library. 1838, https://dlg.usg.edu/record/guan_hmap_hmap1838w3#item.
APA
J. & C. Walker (Firm) (1838). A geological map of England, Wales, and part of Scotland, showing also the inland navigation, with the railroads & principal roads / by J. & C. Walker.. Retrieved from https://dlg.usg.edu/record/guan_hmap_hmap1838w3#item
Chicago
J. & C. Walker (Firm). "A geological map of England, Wales, and part of Scotland, showing also the inland navigation, with the railroads & principal roads / by J. & C. Walker.." 1838. July 19, 2025. https://dlg.usg.edu/record/guan_hmap_hmap1838w3#item.