PUCPR Search for 'an:284340'

Reconnaissance of the ground-water resources of Vieques Island, Puerto Rico

By Torres González, Sigfredo..
San Juan, P.R. | Denver, Colo. Dept. of the Interior, U.S. Geological Survey | Books and Open-File Reports [distributor] 1989 .
v, 37 p. 28 cm..

Hydrogeology and simulation of ground-water flow in the upper aquifer of the Río Grande de Manatí area, Puerto Rico

By Torres González, Sigfredo..
San Juan, P.R. | Denver, CO U.S. Dept. of the Interior, U.S. Geological Survey | Earth Science Information Center, Open-File Reports Section [distributor] 1996 .
vi, 102 p. , Shipping list no.: 96-0228-P. 28 cm..

Compilation of ground-water level measurements obtained by the United States Geological Survey in Puerto Rico, 1958-1985

By Torres González, Sigfredo..
San Juan, P.R. Department of the Interior 1991 .
vi, 163 p. 28 cm..