00580nam a22002057a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001500102110001100117245007700128260002700205300002100232490004200253650003700295830004200332CHAP20220817042503.0971013s1969            r     00010     d  a46054  a47026  a51167  cCHAP  a532.51bU5  aUNESCO  aWater in the unsaturated zoneb: proceedings of the Wageningen symposium  aParis :bUNESCO,c1969  a2 v.b; gráfs.  aStudies and reports in hydrologyv; 214aFlujo de agua en medios porosos.0 aStudies and reports in hydrologyv; 2