Smith, Alan (2010). Lakeland Rocks; an Introductory Guide. Keswick: Rigg Side Publications, No.4
Smith, Alan (2010). Lakeland Rocks; an Introductory Guide. Keswick: Rigg Side Publications, No.4 in the Landscape of Cumbria series. First edition. 84pp. PB. A5 format. Abundant colour photographs of rock samples and exposures . New condition.