00337    a2200121   4500020001500000082001300015100002400028245005100052260004400103300002100147650003100168650001600199  a0444886753  a633bECO  aPearson, C.J. eed.  aEcosystems of the worldbfield crop ecosystems  aAmsterdambElsevier Sciencec1992g1992  axiii,576p.c27cm  aField and plantation crops  aAgriculture