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Low-flow characteristics at selected sites on streams in Southern and Western Puerto Rico

By Santiago-Rivera, Luis..
San Juan, P.R. | Denver, Colo. U.S. Geological Survey | U.S. Geological Survey, Books and Open-File Reports Section [distributor] 1996 .
viii, 46 p. 28 cm..

Hydrology and simulation of ground-water flow in the Aguadilla to Rio Camuy area, Puerto Rico /

By Tucci, Patrick..
San Juan, P.R. : | Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey ; | Books and Open-File Reports Section [distributor], 1995 .
iv, 39 p. : , Shipping list no.: 96-0117-P. 28 cm..