By Drohan, Michele I.
By Dorling Kindersley, Helen Whittaker
By Marshak, Stephen
By Goudie, Andrew, Stokes, Stephen
By Fossen, Haakon
By McGowran, Brian
By David E. Alexander
By Armstrong, Howard A.
By White, I. D., etc.
By Paterson, W. S. B.
By Tolmazin, D.
By Pipkin, Bernard W.
By Doyle, Peter
By Schluter, Thomas, Trauth, Martin H.
By Townsend, Peter
By Anita Ganeri, Mike Phillips
By Anita Ganeri
By Robert S. Dadson, Great Britain: National Physical Laboratory, Sylvia L. Lewis
By Ian Statham, Brian Finlayson
By R.Kay Gresswell, G.R.P. Lawrence
By Nicholas Crane
By Donald L Baars
By Kenneth L. Graham
By F. C. Phillips
By W.J. Baird, Pat MacDonald
By Brenda Maddox
By Thomas Gold, F. Dyson
By Philip Kearey (Lecturer in Applied Geophysics, University of Bristol), Frederick J. Vine (Professor of Environmental Sciences, University of East Anglia, Norwich)
By Ian Vince
By Nikki Bundey