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02h0049004 20140227094933.0 s1981 enkab frb |000|||eng | CNY200.00 NGL a434.06 ; a850 Hopson, P. M. The sand and gravel resources of the country around Stansted, Mountfitchet, Essex : description of 1:25 000 resource sheet TL 52 / by P. M. Hopson. London : Her Majesty's Stationery Office, 1981. iii, 110 p. : ill., maps ; 30 cm. + 1 map. Mineral Assessment Report / Institute of Geological Sciences (London) ; no.104 Bibliography: (p. 110) Sand ; Gravel ; Aggregates (Building materials) ; Geology and mineralogy. England ; Essex County. ; England ; Essex County. ; England ; Essex County. Institute of Geological Sciences. Mineral Assessment Report / Institute of Geological Sciences (London) ; no.104. aCN bNGL 010001 P 434.06 M66 v104 ; rCNY200.00 ; h1 wang059