FIGURE 1-2 Groundwater regions in the United States. Note: Shading refers to principal types of water-bearing rocks. SOURCE: Heath (1984).
The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
1 Introduction ."
Valuing Ecosystem Services: Toward Better Environmental Decision-Making . Washington, DC: The National Academies Press,
Please select a format: