Geological aspects of uranium in the environment : papers delivered at a meeting organised jointly by the Geological Society and the Department of Applied Geology, University of Strathclyde, Glasgow, and held at the University of Strathclyde, on Saturday, 12th November, 1977 - Duff, P. McL. D. (Peter McLaren Donald), 1927- (Miscellaneous paper (Geological Society of London) ;, 1978)