The sand and gravel resources of the country around Hatfield and Cheshunt, Hertfordshire description of 1:25000 sheets TL20 and 30, and parts of TQ29 and 39
Gozzard, J. R.
Institute of Geological Sciences (Great Britain)
London H.M.S.O.
1981
At head of title: Institute of Geological Sciences
Bibliography: p73
Folded sheet (map) in pocket
Sand
Gravel