Earth Science Information Center
By: National Mapping Program.
Contributors: Geological Survey (U.S.). National Mapping Division.
Publisher: U.S. Dept. of the Interior, Geological Survey
Published: 1991
Place of publication: [Reston, Va.?]
Language: eng
Subjects: Earth Science Information Center (U.S.)
Notes: Shipping list no.: 91-468-P.

"March 1991"--P. [2].