U.S. Geological Survey information sources.
Contributors: Geological Survey (U.S.)
Series: USGS fact sheet -- 043-00.; Fact sheet (Geological Survey (U.S.)) -- FS-00-043.
Publisher: U.S. Dept. of the Interior, U.S. Geological Survey
Published: 2000
Place of publication: [Reston, Va.?]
Language: eng
Subjects: Geological Survey (U.S.); Earth sciences.; Natural resources -- United States.
Notes: Shipping list no.: 2000-0200-P.