The magnetic field of the earth-1985 : vertical intensity chart /
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| Corporate Author: | |
|---|---|
| Other Authors: | , |
| Format: | Government Document Map |
| Language: | English |
| Published: |
Reston, Va. : Denver, CO :
The Survey ; For sale by Map Distribution,
1988.
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| Series: | Geophysical investigations (Geological Survey (U.S.)) ; map ;
GP-987-Z. Geophysical investigations ; map GP-987-Z. |
| Subjects: |