00715nam a2200193Ia 4500001000700000003000500007005001700012008004100029010001700070110004500087245009400132260002200226300001900248490003400267500011800301500003300419650004600452651002300498131284BIBL20160527191907.0931005m1999    dcia                eng    afel36001809 20aUnited StatesbGeological survey.2Local10aElectrical analog model study of the alluvial aquifer in the Yabucoa valley, Puerto Rico.  a[Washington]c19-  av.bill. maps.0 aOpen-File Reportv73-12Local  a"Prepared by the U.S. Geological Survey in cooperation with Puerto Rico Environmental Quality Board [and others].  aSelected references : p. 22. 0aHydrographyzYabucoa, Puerto Rico.2Local 0aPuerto Rico2Local