00993cam a22002657a 4500003000500000005001700005008004100022010001000063011001000073020002700083035001000110040000900120082001600129111008700145245011900232260005300351300003300404490006900437650004000506650003800546650002700584650002800611700001900639830006900658CHAP20220329141908.0980424d1995    nl      r     10110 eng d  a75397  a76369  a0792336089c(hardback)  a85952  cCHAP04a630.215bS900aSymposium on Eco-Regional Approaches in Agricultural Researchd(1994 :cThe Hague)10aEco-regional approaches for sustainable land use and food production :bproceedingsc/ed. by J. Bouma [and others]  aDordrecht :bInternational Potato Center,c1995.  a505 p. :bcuadros ; gráfs. 0aSystems approaches for sustainable agricultural developmentv; 414aAgricultura sustentablexCongresos.14aEcología agrícolaxCongresos.14aPlaneación regional.14aTierrasxUtilización.0 aBouma, J.eed.0 aSystems approaches for sustainable agricultural developmentv; 4