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| 901 | 0 | 0 | _aENG |
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| 903 | 0 | 0 | _a62754 |
| 245 | 0 | 0 | _aOperational Efficiency in Forestry : |
| 100 | 0 | 0 | _aSilversides, C. |
| 700 | 0 | 0 | _aSundberg, U |
| 440 | 0 | 0 | _aForsetry Sciences |
| 902 | 0 | 0 | _a634.9 |
| 650 | 0 | 0 | _aForestry Efficiency |
| 650 | 0 | 0 | _aForests and Forestry-Labor Productivity |
| 650 | 0 | 0 | _aForestry Engineering |
| 260 | 0 | 0 |
_aDordrelht _bKlower Academin Publishers _c1989 |
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