00733nam a22002537a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001500102100002200117245006600139260004200205300003400247490004500281650002700326650002500353650001600378650002300394700001700417830004500434CHAP20220329133842.0971013s1979            r     00010     d  a11793  a12765  a16353  cCHAP  a551.45bG600aGoodall, David W.  aArid land ecosystemsb: structure, functioning and management  aLondon :bCambridge University,c1979  a2 v.b: ilus. mapas, gráfs.  aInternational Biological Programmev; 1614aDesiertosxEcología.14aDesiertosxMéxico.14aEcosistema.14aRegiones áridas.0 aPerry, R. A.  aInternational Biological Programmev; 16