00436nam a2200157Ia 4500008004100000082001500041100001800056245003100074250001200105260002300117300001500140490003200155600003600187600003100223650002400254140224s9999    xx            000 0 und d  a63(213) M0  aWebster, C.C.  aAgriculture in the tropics  a2nd ed.  aLondonbELBSc1980  aviii,640p.  aTropical Agriculture Series  a Webster, C.C. and Wilson, P.N.  aWilson, P.N., joint author  aAgriculture-Tropics