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The rare earths
| Author: | Petar, Alice Virginia, |
|---|---|
| Year: | 1935 |
| Document Type: | MAIN |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| SUDOC: | I 28.27:6847 |
| Series: | Information circular / Bureau of Mines ; |
| Report Number: | 6847 |
| Subject: | Rare earths |
| Link: | https://hdl.handle.net/2027/mdp.39015095086289 |
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