00840nam a2200277 a 450000100080000000500110000800800410001910000160006024501840007626000220026030000100028265000150029265000160030765000160032365000090033965000190034865000230036765000210039065000150041165300260042665300200045265300260047265300200049870000220051870000220054013861562010-02-04       1981    bl uuuu      00u1 u    #d1 aDUTT, G. R.  aRainfall collection for agriculture in arid and semiarid regionsbproceedings of a workshop hosted by the University of Arizona, USA and the Chapingo Postgraduate College, Mexico.  aSlough: CABc1981  a97 p.  aarid zones  aclimatology  ameteorology  arain  asemiarid zones  awater conservation  awater harvesting  aZona Arida  aClimatologia agricola  aColeta de chuva  aMeteorologia agricola  aZona Semi-arida1 aHUTCHINSON, C. F.1 aANAYA GARDUNO, M.