1. Techniques for estimating specific yield and specific retention from grain-size data and geophysical logs from clastic bedrock aquifers Author/Creator: Robson, Stanley G., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1993 Resource Type: Book Access & Availability: Loading
2. Thirsty cities urban environments and water supply in Latin America Author/Creator: Antón, Danilo J. Publication/Creation: Ottawa, Ontario : International Development Research Centre, 1993 Resource Type: Book Access & Availability: Loading