Assessment of nitrate contamination of the upper aquifer in the Manatí-Vega Baja area, Puerto Rico /

Ground-water resource assessment in the Río Grande de Manatí alluvial plain, Río Arriba Saliente area, Puerto Rico /
by: Torres-González, Sigfredo
Published: (2002)

Ground-water resources of the Caguas-Juncos Valley, Puerto Rico /
by: Puig, Juan C. (Juan Carlos)
Published: (1993)

Three-dimensional ground-water-flow model of the water-table aquifer in Vega Alta, Puerto Rico.
by: Sepúlveda, Nicasio
Published: (1996)

Hydrogeology and simulation of ground-water flow in the upper aquifer of the Río Camuy to Río Grande de Manatí area, Puerto Rico /
by: Torres-González, Sigfredo, et al.
Published: (1996)

Geohydrology and simulation of ground-water flow in the Salinas to Patillas area, Puerto Rico.
by: Quiñones-Aponte, Vicente
Published: (1996)

Effects of changing irrigation practices on the ground-water hydrology of the Santa Isabel-Juana Díaz area, south central Puerto Rico /
by: Ramos-Ginés, Orlando
Published: (1994)

Hydrogeology of the karst of Puerto Rico /
by: Giusti, Ennio V.

Characterization of stormwater discharges from selected industrial parks in Puerto Rico, 1995-96 /
by: Rodríguez, José M.
Published: (1998)

Geochemical properties and saline-water intrusion in the Valle de Yabucoa alluvial aquifer, southeastern Puerto Rico /
by: Troester, Joseph W.
Published: (1996)

Characterization of springflow in the north coast limestone of Puerto Rico using physical, chemical, and stable isotopic methods.
by: Rodríguez-Martínez, Jesús
Published: (1997)

Simulation of ground-water flow in the water-table aquifer near Barceloneta, Puerto Rico /
by: Torres-González, Arturo
Published: (1985)

Sugar and slavery in Puerto Rico : the plantation economy of Ponce, 1800-1850 /
by: Scarano, Francisco A. (Francisco Antonio)
Published: (1984)

Potentiometric surface of the alluvial aquifer and hydrologic conditions near Gurabo and Juncos, Puerto Rico, March 1988 /
by: Puig, Juan Carlos, et al.
Published: (1990)

Geology of the Tanamá and Helecho porphyry copper deposits and vicinity, Puerto Rico /
by: Cox, Dennis P.
Published: (1985)

Regionalization of health services : the Puerto Rican experience /
by: Arbona, Guillermo
Published: (1978)

Detection of conduit-controlled ground-water flow in northwestern Puerto Rico using aerial photograph interpretation and geophysical methods /
by: Rodríguez-Martínez, Jesús
Published: (2000)

Geochemistry and hydrogeologic framework of the saline-freshwater interface and the calculation of net recharge in the Dorado area, north-central Puerto Rico /
by: Troester, Joseph W.
Published: (1999)

Hydrogeology of the north coast limestone aquifer system of Puerto Rico.
by: Rodríguez-Martínez, Jesús
Published: (1995)

Puerto Rico : la contribución de la planificación física al desarrollo económico y social = the contribution of physical planning to social and economic development.
by: Carrero, Telesforo
Published: (1960)

Water, sediment, and nutrient discharge characteristics of rivers in Puerto Rico, and their potential influence on coral reefs /
by: Warne, Andrew G.
Published: (2005)

Marine geologic map of the southwestern insular shelf of Puerto Rico, Mayagüez to Cabo Rojo /
Published: (1999)

Natural resource conservation and small-scale farming in the eastern highlands of Puerto Rico : social and historical perspectives /
by: Mercado-Escobar, Mérida Carolina
Published: (1983)

Assessment of ground-water withdrawals at municipal industrial parks in Puerto Rico, 2000 /
by: Rodríguez, José M.
Published: (2004)

Potentiometric surface of the principal aquifer and hydrologic conditions in the Ponce-Juana Diaz area, Puerto Rico, April-May, 1987 /
by: Rodríguez-del-Río, Félix, et al.
Published: (1990)

Puerto Rico Aqueduct and Sewer Authority, Sergio Cuevas Bustamante Filtration Plant, Frujillo Alto, Puerto Rico /
by: Ewers, Lynda M.
Published: (1998)

A well system to recover usable water from a freshwater-saltwater aquifer in Puerto Rico /
by: Zack, Allen L.
Published: (1988)

Planta de Filtracción Sergio Cuevas Bustamante, Autoridad de Acueducto y Alcantarillados de Puerto Rico, Frujillo Alto, Puerto Rico /
by: Ewers, Lynda M.
Published: (1998)

Hydrogeology and simulation of ground-water flow in the upper aquifer of the Río Grande de Manatí area, Puerto Rico.
by: Torres-Gonzáles, Sigfredo
Published: (1996)

Geologic map of Fajardo and Cayo Icacos quadrangles, Puerto Rico /
by: Briggs, Reginald P., 1929-2009
Published: (1980)

Hydrogeology of Puerto Rico and the outlying islands of Vieques, Culebra, and Mona /
by: Gómez-Gómez, Fernando, et al.
Published: (2014)

Groundwater-quality survey of the south coast aquifer of Puerto Rico, April 2 through May 30, 2007 /
by: Rodríguez, José M.
Published: (2009)

Effects of land use on upland erosion, sediment transport, and reservoir sedimentation, Lago Loíza Basin, Puerto Rico /
Published: (1999)

Puerto Rico : culture, politics, and identity /
by: Morris, Nancy
Published: (1995)

Wages, productivity, and industrialization in Puerto Rico /
by: Reynolds, Lloyd George, 1910-
Published: (1965)

Los anfibios y reptiles de Puerto Rico = The amphibians and reptiles of Puerto Rico /
by: Rivero, Juan A.
Published: (1978)

Ground-water resources of alluvial valleys in northeastern Puerto Rico : Río Espíritu Santo to Río Demajagua area.
by: Pérez-Blair, Francisco
Published: (1997)