00630nam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001700102100001800119245003500137260003400172300001700206490002900223505009500252650003600347830002900383CHAP20220329134449.0971013s1972            r     00010     d  a20784  a21756  a25847  cCHAP  a631.0915bA700aArnon, Isaac.  aCrop production in dry regions  aLondon :bLeonard Hill,c1972  a2 v.b: ilus  aPlant science monographs  aContenido: v.1 Background and principles.- v.2 Systematic treatment of the principal crops14aRegiones áridasxAgricultura.0 aPlant science monographs