Home › Authors › AWRA International Symposium on Tropical Hydrology (1990 San Juan, P.R.) 👤 AWRA International Symposium on Tropical Hydrology (1990 San Juan, P.R.) 1 book Books by AWRA International Symposium on Tropical Hydrology (1990 San Juan, P.R.) Regional aquifer systems of th Regional aquifer systems of the United States aquifers of the Caribbean Islands 1991