TY  - BOOK
AU  - Piper,D.P.
TI  - The conglomerate resources of the Sherwood Sandstone Group of the country east of Stoke-on-Trent, Staffordshire - Description of 1:25 000 resource sheet SJ 94
PY  - 1982///
CY  - London
PB  - Institute of Geological Sciences
ER  -