By Dumont, Rene, Timberlake, Lloyd
By Leach, Gerald, Mearns, Robin
By Holloway, Richard ed., Holloway, Richard
By Conway, Gordon R., Barbier, Edward
By Grainger, Alan
By Walker, Peter
By Duncan Poore
By Wilsdon, James
By Parry, Martin
By Crump, Andy
By Clark, John
By Sarre, Phil, etc., Morris, Eleanor
By Meadows, Donella H., Meadows, Dennis L., Randers, Jorgen, Tinbergen, Jan
By Gore, Al
By Brown, Lester R., etc.
By Weizsacker, Ernst U. von, Lovins, Amory B., Lovins, L. Hunter
By Sheldon, Christopher, Yoxon, Mark
By Kidron, Michael, Segal, Ronald, Smith, Dan