The Sand and Gravel Resources of the Country South-west of Peterborough, in Cambridgeshire and East Northamptonshire: Description of 1:25 000 Resource ... and SP 98, TL 08 (Mineral Assessment Reports)
British Geological Survey · 1981
Ppb.
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ISBN: 978-0-11-884147-4
ISBN-10: 0-11-884147-5