00834nam a2200229Ia 4500 131284 BIBL 20160527191907.0 931005m1999 dcia eng fel36001809 EVLP 551.49 U586 GS:e United States Geological survey. Local 182913 Electrical analog model study of the alluvial aquifer in the Yabucoa valley, Puerto Rico. [Washington] 19- v. ill. maps. Open-File Report 73-1 Local 145204 "Prepared by the U.S. Geological Survey in cooperation with Puerto Rico Environmental Quality Board [and others]. Selected references : p. 22. Hydrography Yabucoa, Puerto Rico. Local 113602 Puerto Rico Local 155382 110823 110823 0 0 ddc 0 551_490000000000000_U586_GSE 0 ci 159330 10 10 B 2016-05-27 v.2 1973 198896 0 551.49 U586 GS:e 80000001509879 2016-05-27 00:00:00 r:131284 z:NCC:D 6