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1.
The sand and gravel resources of the country around Sedgefield, Durham - Description of 1:25 000 resource sheet NZ 32 by
Material type: Text Text; Literary form: Not fiction
Publisher: London Institute of Geological Sciences 1979
Availability: Items available for loan: Library of General Geology (1).
2.
The sand and gravel resources of the country around Hertford, Hertfordshire - Description of 1:25 000 resource sheet TL 31 by Series:
Material type: Text Text; Literary form: Not fiction
Publisher: London Institute of Geological Sciences 1982
Availability: Items available for loan: Library of General Geology (1).
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