00722nam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001400102110007500116245004100191260004400232300001700276490002200293505015400315650001300469830002200482CHAP20220329135559.0971013s1972            r     00010     d  a38827  a39799  a43924  cCHAP  a631.6bI5  aInstituto Internacional de Rescate y Mejoramiento Técnico de Tierras  aDrainage principles and applications  aWageningen :bThe Institute,c(1972-74)  a4 v.b: ilus  aPublicationv; 16  aContenido: v.1 Introductory subjects.- v.2 Theories of field drainafe.- v.3 Surveys and investigations.- v.4 Design an management of drainege systems14aDrenaje.0 aPublicationv; 16