Magnetic declination in the United States; epoch 1975.0

IMAP 911
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Publication type Report
Publication Subtype USGS Numbered Series
Title Magnetic declination in the United States; epoch 1975.0
Series title IMAP
Series number 911
Subseries NONE
DOI 10.3133/i911
Edition -
Year Published 1975
Language ENGLISH
Description 2 maps on 1 sheet :col., both sides ;66 x 111 cm., sheet 84 x 119 cm.
Scale 5000000
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