Ground-water resources of alluvial valleys in northeastern Puerto Rico :
Río Espíritu Santo to Río Demajagua area /
by Francisco Pérez-Blair ; prepared in cooperation with the Puerto Rico Aqueduct and Sewer Authority.

APA Citation

Pérez-Blair, F., Geological Survey (U.S.)., Puerto Rico Aqueduct and Sewer Authority. (1997). Ground-water resources of alluvial valleys in northeastern Puerto Rico: Río Espíritu Santo to Río Demajagua area. San Juan, P.R.: U.S. Dept. of the Interior, U.S. Geological Survey .

MLA Citation

Pérez-Blair, Francisco, Geological Survey (U.S.), and Puerto Rico Aqueduct and Sewer Authority. Ground-water Resources of Alluvial Valleys In Northeastern Puerto Rico: Río Espíritu Santo to Río Demajagua Area. San Juan, P.R.: U.S. Dept. of the Interior, U.S. Geological Survey , 1997.