By -
By Neil E. Sealey
By Deryck M. Bernard
By Pretty, J
By No Author.
By Fullard, Harold, Darby, H. C.
By Gates, Ernest S.
By Selby, M.J.
By Dalton, Roger, etc.
By Gribbin, John
By Unidentified Author
By Evans, Alex
By Welland, Michael
By McGuire, Bill
By Harding, Paul T., Sutton, Stephen L.
By editor
By Thomas
By Jonathon. Porritt, Porritt, Jonathon.
By British Geological Survey
By Ted Nield
By Ziegler, Peter A.
By World Book and Verlagsgruppe Bertelsmann Internat
By Charles J. Krebs
By Small, R.J., Witherick, M. E.
By Pritchard, Bill, Ortiz, Rodomiro, Shekar, Meera
By Zebrowski Jr, Ernest
By John L. Morton
By Mares, Michael A.
By Witherick, Michael