Educational materials from the U.S. Geological Survey.
Contributors: Geological Survey (U.S.)
Series: USGS fact sheet -- 044-00.; Fact sheet (Geological Survey (U.S.)) -- FS-00-044.
Publisher: U.S. Dept. of the Interior,  U.S. Geological Survey
Published: 2000
Place of publication: [Reston, Va.?
Language: eng
Subjects: Earth sciences -- Study and teaching -- United States -- Bibliography.; Earth sciences -- United States -- Bibliography.
Notes: Caption title.

Shipping list no.: 2000-0205-P.

"March 2000"--P. [1].