00563nam a2200169   450000500170000000600040001700700040002100800040002502000150002904000090004405000210005324501690007426000470024330000240029050000500031465000290036420170803105943.0000000000  a1840647523  aUOEL  aS591b.L293 2003  aLand Quality, Agricultural Productivity, and Food SecuritybBiophysical Processes and economic choices at Local, Regional and Global LevelscEdited by Wiebe,Keith .  aCheltenham ;aUK :bEdward Elgar .cc 2003  axi ,461p . :bill .  aincludes bibliographical references and index  aAgriculturexAgriculture