Citations
'Memoir upon the topographical system of Colonel van Gorkum, with remarks and reflections upon various other methods of representing ground: addressed to Lt.Gen. Sir Herbert Taylor, G.C.H., Surveyor-General of His Majesty's Ordnance', 1828, GBR/3296/Maps/CCSA.IM_509_12, IM_509_12. Cambridge University Library. |
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'Memoir upon the topographical system of Colonel van Gorkum, with remarks and reflections upon various other methods of representing ground: addressed to Lt.Gen. Sir Herbert Taylor, G.C.H., Surveyor-General of His Majesty's Ordnance', 1828, GBR/3296/Maps/CCSA.IM_509_12, IM_509_12. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/240097 Accessed November 15, 2024. |