A guide to obtaining information from the USGS.

Bibliographic Details
Corporate Author: Geological Survey (U.S.)
Other Authors: Clarke, Paul F., Hodgson, Helen E., North, Gary W.
Format: Government Document Serial
Language:English
Published: [Reston, Va.] : [Geological Survey], 1978-
Series:Geological Survey circular ; 777.
Subjects:
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Published 1978
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