Paleoclimate and mineral deposits

Thorium resources of selected regions in the United States

Palynomorph preparation procedures currently used in the paleontology and stratigraphy laboratories, U.S. Geological Survey

Earthquakes in the United States, April-June 1979

Assessment of impacts of proposed coal-resource and related economic development on water resources, Yampa River basin, Colorado and Wyoming; a summary

The United States Geological Survey in Alaska; accomplishments during 1980

Biota and biological parameters as environmental indicators

Infectious waterborne diseases

Microbiology of the aquatic environment

The Conterminous United States Mineral Appraisal Program; background information to accompany folio of geologic, geochemical, geophysical, and mineral resource maps of the Choteau 1 degree x 2 degrees Quadrangle, Montana

Changes in the organic material in lakes in the blast zone of Mount St. Helens, Washington

Storage and retrieval of ground-water data at the U.S. Geological Survey

Seismic engineering program report, September-December 1980

U.S. Geological Survey program of offshore resource and geoenvironmental studies, Atlantic-Gulf of Mexico region, from September 1, 1976, to December 31, 1978

A U.S. Geological Survey data standard: Codes for the identification of hydrologic units in the United States and the Caribbean outlying areas