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Open-file reports.

Bibliographic Details
Corporate Author: Geological Survey (U.S.)
Format: Government Document Book
Language:English
Published: [Reston, Va.] : U.S. Geological Survey, <1998->
Subjects:
Earth sciences > United States.
Geology > United States.
Online Access:Click by years to obtain a listing of available titles to view
Description
Item Description:Title from title screen.
Physical Description:1 volume
Format:Mode of access: Internet.