Detection of conduit-controlled ground-water flow in northwestern Puerto Rico using aerial photograph interpretation and geophysical methods

By Rodríguez-Martínez, Jesús. .
San Juan, P.R. | Denver, CO U.S. Dept. of the Interior, U.S. Geological Survey | Branch of Information Services [distributor] 2000 .
v, 45 p. 28 cm. .

National Cave and Karst Research Institute Study a draft report to Congress as required by Public La 101-578 of November 15,1990

Santa Fe, N.M. National Park Service, U.S. Dept. of the interior, Southwest Regional Office 1994 .
37, [32] p. , "Consideration of the feasibility of establishing a National Cave and Karst Institute in association with the National Park Service's Cave Research Program." 28 cm.

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Detection of conduit-controlled ground-water flow in northwestern Puerto Rico using aerial photograph interpretation and geophysical methods

National Cave and Karst Research Institute Study a draft report to Congress as required by Public La 101-578 of November 15,1990