Home › Authors › Lloyd, J. W. 👤 Lloyd, J. W. 4 books Books by Lloyd, J. W. Water resources of hard rock a Water resources of hard rock aquifers in arid and semi-arid zones 1999 Aspects of hydrogeology and hy Aspects of hydrogeology and hydrochemistry 1985 Natural inorganic hydrochemistry in relation to groundwater 1985 Case-studies in groundwater resources evaluation 1981