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| 008 | 250720s1937 xxu 000 0 eng d | ||
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| 100 | 1 |
_aGustafson, A. F. _931714 |
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| 245 | 1 | 0 | _aConservation of the soil. |
| 260 |
_aNew York : _bMcGraw-Hill, _c1937. |
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| 300 |
_a312 p. : _bil. ; _c23 cm |
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| 650 | 4 | _aAgronomía | |
| 650 | 4 | _aEdafología | |
| 650 | 4 | _aErosión | |
| 653 | 0 | _aSuelo | |
| 655 | 4 |
_aLibro _914 |
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_cLB _2cdu |
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_aidgym _d2004-10-01 |
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_c37304 _d37304 |
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