By Food and Agriculture Organization of the United Nations
By Economics, and the Environment The H. John Heinz III Center for Science
By Finch, William R.
By Indiviglio, Frank
By Whitwam, Linda
By Roger Nowell, Jeremy Mills
By Garner, John
By A. Halcrow
By Redmond O'Hanlon
By Bart van Olphen
By Simon Jennings (CEFAS Lowestoft), Michel Kaiser (University of Wales, Bangor), John D. Reynolds (Simon Fraser University)
By Olive Heffernan
By James W. Nybakken
By Paul Greenberg
By Agriculture, Fish.& Food, Min.of
By Christopher Mason
By Measey, John
By Bryant, Paul
By Axelrod, Herbert R.
By Rankin, Wayne, Walls, Jerry G.
By Mair, Graham
By Mercier, Annie, Hamel, Jean-Francois, Suhrbier, Andrew, Pearce, Christopher
By Dick Mills
By Smylie, Mike
By A.B.C. Whipple, the editors of Time-Life Books, of Time-Life Books
By Kees d'Angremond, F. van Roode
By Dawn J. Wright, Darius J. Barlett
By Paul V. Loiselle, David Sands, W.S. Leibel
By Windsor, M., Barlow, S. M.