Não informado. (2012). Summary of Progress of the Geological Survey of Great Britain and the Museum of Practical Geology with Report of the Geological Survey Board. Her Majesty's Stationery Office.
Chicago Style (17. basım) AtıfNão informado. Summary of Progress of the Geological Survey of Great Britain and the Museum of Practical Geology with Report of the Geological Survey Board. London: Her Majesty's Stationery Office, 2012.
MLA (8th ed.) AtıfNão informado. Summary of Progress of the Geological Survey of Great Britain and the Museum of Practical Geology with Report of the Geological Survey Board. Her Majesty's Stationery Office, 2012.
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