Millea, N. (2009). The Gough Map: Britain's oldest road map or a statement of empire? International Map Collectors' Society.
Chicago-referens (17:e uppl.)Millea, N. The Gough Map: Britain's Oldest Road Map or a Statement of Empire? International Map Collectors' Society, 2009.
MLA-referens (9:e uppl.)Millea, N. The Gough Map: Britain's Oldest Road Map or a Statement of Empire? International Map Collectors' Society, 2009.
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