00469nam a2200157Ia 4500008004100000082001600041100001900057245006300076260004600139300000800185650004100193650003400234653001400268653001500282653001400297170901s1975    xx            000 0 und d  a631.7bV25S  aKeulen, H. Van 0aSimulation of Water Use and herbage growth in arid regions  aNew YarkbOxford and Publishing Co.c1975  a176  aAgriculture and related technologies  aTechnology (Applied sciences)  aArid zone  aSimulation  aWater use