The magnetic field in the United States, 1985 Declination chart /
Corporate Author: | |
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Other Authors: | , |
Format: | Government Document Map |
Language: | English |
Published: |
Reston, Va. : Denver, CO :
U.S. Geological Survey ; For sale by Map Distribution,
1988
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Series: | Geophysical investigations (Geological Survey (U.S.)) ;
map GP-986-D |
Subjects: |