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| 082 | ⊔ | ⊔ | ‡a338.2 |
| 100 | 1 | ⊔ | ‡aBarger, Harold |
| 245 | 1 | 4 | ‡aThe mining industries, 1899-1939 : ‡ba study of output, employment, and productivity / ‡cby Harold Barger and Sam H. Schurr. |
| 260 | ⊔ | ⊔ | ‡aNew York : ‡bNational Bureau of Economic Research, ‡c1944. |
| 300 | ⊔ | ⊔ | ‡axxii, 452 p. : ‡bill. ; ‡c24 cm. |
| 490 | 0 | ⊔ | ‡aPublications of the National Bureau of Economic Research, Inc. ; ‡vno. 43 |
| 504 | ⊔ | ⊔ | ‡aIncludes bibliographical references and index. |
| 538 | ⊔ | ⊔ | ‡aMode of access: Internet. |
| 650 | ⊔ | 0 | ‡aMining engineering ‡zUnited States ‡xHistory. |
| 650 | ⊔ | 0 | ‡aMineral industries ‡zUnited States ‡xHistory. |
| 700 | 1 | ⊔ | ‡aSchurr, Sam H. |
| 710 | 2 | ⊔ | ‡aNational Bureau of Economic Research. |
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