1997 Colour Shaded Relief Gravity Anomaly Map of Britain, Ireland and adjacent areas, 1:15000000 scale

SMITH, I.F. and J.W.F. EDWARDS (compilers), B.C. CHACKSFIELD, A. GIBBERD, P.W. READMAN, D.T. SANDWELL (contributors), 1997.
Colour Shaded Relief Gravity Anomaly Map of Britain, Ireland and adjacent areas, 1:15000000 scale. British Geological Survey, Keyworth, Nottingham, UK.