United States Geological Survey yearbook fiscal year 1990.
| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
[Washington, D.C.] : Denver, CO :
U.S. G.P.O. ; For sale by the Books and Open-File Reports Sections,
1991.
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| Subjects: |
| Item Description: | Cover title: USGS 1990. |
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| Physical Description: | iv, 108 pages : illustrations (some color), maps ; 29 cm |