00313nam a2200109Ia 4500008004100000082001600041245005700057260003400114300001000148600002100158650002400179130903s9999    xx            000 0 und d  a63(213)  L1  aTropical agriculture: the development of production.  aLondonbFaber and Faberc1971  a376p.  aWrigley, Gordon.  aAgriculture-Tropics