Ground-water flow in the Gulf Coast aquifer systems, south-central United States door Williamson, Alex K.

Geologic framework of the San Juan structural basin of New Mexico, Colorado, Arizona, and Utah, with emphasis on Triassic through Tertiary rocks door Craigg, Steven D.

Mineral deposit density an update

An interdisciplinary assessment of regional-scale nonpoint ground-water vulnerability theory and application door Bernknopf, Richard L. (Richard Lewis)

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Beyond the Golden Gate oceanography, geology, biology, and environmental issues in the Gulf of the Farallones

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Geologic field-trip guide to Steens Mountain Loop Road, Harney County, Oregon door Evans, James George 1938-

Geology and paleontology of five cores from Screven and Burke counties, eastern Georgia

Comparative water-quality assessment of the Hai He River basin in the People's Republic of China and three similar basins in the United States

Active tectonics of the Devils Mountain fault and related structures, northern Puget Lowland and eastern Strait of Juan de Fuca region, Pacific Northwest

Land-use changes and the physical habitat of streams a review with emphasis on studies within the U.S. Geological Survey Federal-State Cooperative Program door Jacobson, Robert B.