1. On Longmydian inliers at Old Radnor and Huntley (Gloucestershire);Callaway;Quarterly Journal of the Geological Society of London,1900
2. Earp J. R. Hains B. A. (1971) The Welsh Borderland (British Regional Geology, H.M.S.O), 3rd edn.
3. On the geology of the Old Radnor district, with special reference to an algal development in the Woolhope Limestone;Garwood;Quarterly Journal of the Geological Society of London,1918
4. Greig, D. C, Wright, J. E., Hains, B. A. & Mitchell, G. H. 1968. Geology of the country around Church Stretton, Craven Arms, Wenlock Edge and Brown Clee. Memoir of the Geological Survey of Great Britain, Sheet 166.
5. Hains, B. A. 1969. The geology of the Craven Arms area. Geological Survey of Great Britain.