By James Herriot
By John R. August BVetMed MS MRCVS
By Helmut F. van Emden (University of Reading)
By Karen Bush, Claire Colvin
By Mutch, WILLIAM
By Royal Horticultural Society, Sara Draycott
By P. Murphy
By Leggat, George, Beaton, Arnold, Lang Brown, James, Osmaston, Henry
By G. Webster, H.A. Osmaston
By Orla Ryan
By James R Simpson, Phylo Evangelou
By National Research Council, Division on Earth and Life Studies, Board on Agriculture and Natural Resources, Committee on Animal Nutrition, Subcommittee on Dog and Cat Nutrition
By Andrea Wulf
By Thomas J. Bassett (University of Illinois, Urbana-Champaign)
By Goodman, Ruth, Langlands, Alex, Ginn, Peter
By Dan Barber
By Katie Thear
By Parkin, Anthony
By Edward Hart
By John Bryn Owen
By Allan Fraser, J.T. Stamp
By Andrew W. Speedy
By Henderson, David C.
By Fish.& Food, Min.of Agriculture, Agriculture Fish.& Food Min.of
By P. Jackson
By David Sainsbury
By David James Bell, B. M. Freeman
By W.Edward Allen
By Matt Whyman
By Smith, Robert L., Smith, Thomas M.