By Food and Agriculture Organization of the United Nations
By Windsor, M., Barlow, S. M.
By Blakely, Garry, Hrusa, C. T.
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 Measey, John
By O'Hanlon, Redmond
By Dawes, John A.
By A.B.C. Whipple, the editors of Time-Life Books, of Time-Life Books
By Paul V. Loiselle, David Sands, W.S. Leibel
By Dawn J. Wright, Darius J. Barlett
By Kees d'Angremond, F. van Roode
By Economics, and the Environment The H. John Heinz III Center for Science
By Christopher Mason
By Agriculture, Fish.& Food, Min.of
By Paul Greenberg
By James W. Nybakken
By Olive Heffernan
By Simon Jennings (CEFAS Lowestoft), Michel Kaiser (University of Wales, Bangor), John D. Reynolds (Simon Fraser University)
By Bart van Olphen
By Redmond O'Hanlon
By A. Halcrow
By Garner, John
By Roger Nowell, Jeremy Mills
By Whitwam, Linda