. "The sand and gravel resources of the country around Huntingdon and St. Ives, Cambridgeshire : description of parts of 1:25000 sheets TL 16, 17, 26, 27, 36 and 37"@en . . "The sand and gravel resources of the country around Huntingdon and St Ives, Cambridgeshire : description of 1:25 000 resource sheets TL 16, 17, 26, 27, 36 and 37" . . . . . . . . . "The sand and gravel resources of the country around Huntingdon and St. Ives, Cambridgeshire" . . . . . . "The sand and gravel resources of the country around Huntingdon and St Ives, Cambridgeshire : description of parts of 1:25,000 sheets TL 16, 17, 26, 27, 36, and 37"@en . . . . . "Gravel England Cambridgeshire." . . "Sand England Cambridgeshire." . . . . "England" . . "Sand." . . "Mining engineering." . . "Gravel." . .