International Geophysical Year: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Corrected display issue. | Mar 20, 2023 | ||
| Invalidated site: National Aeronautics and Space Administration - International Geophysical Year. | Mar 13, 2019 | ||
| Add new Web site: How Stuff Works - Science - International Geophysical Year. | Mar 02, 2012 | ||
| Add new Web site: Fact Monster - Science - International Geophysical Year. | Mar 02, 2012 | ||
| Add new Web site: National Aeronautics and Space Administration - International Geophysical Year. | Mar 02, 2012 | ||
| Add new Web site: National Academy of Sciences - International Geophysical Year. | Mar 02, 2012 | ||
| Article added to new online database. | Jul 20, 1998 |
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