High specification aggregates for road surfacing materials.
Thompson, Alan.
Greig, John,1949-
Shaw, Janette.
Travers Morgan Limited.
Geological and Minerals Planning Research Programme.
East Grinstead : Travers Morgan, on behalf of the Department of the Environment,
1993.
Maps on folded plates.
At head of title: Department of the Environment, Geological and Minerals Planning Research Programme.
Two maps on folded sheets in pockets.