Geological notes and local details for 1:10000 sheets SP26NW, NE, SW, SE and parts of SP25NW and NE, Warwick and Hatton : part of 1:50000 sheets 183 (Redditch) and 184 (Warwick): Institute of Geological Sciences, Geological Notes and Local Details for 1:10 000 Sheets 1982 [2],53 : ill,maps / K. Ambrose and P.J. StrangeBooks/Monographs