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| 008 | 971013s1954 r 00010 d | ||
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_aJohnson, Frederick S. _961820 |
| 245 | _aReport on preliminary investigation on chemical weed control in Venezuela, 1951 | ||
| 260 |
_aNew York : _bIBEC Research Institute, _c1954 |
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_a20 p. _b: ilus |
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_aBulletin _v; 2 |
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_aMalas hierbas _xControl. _970011 |
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_aMalas hierbas _xVenezuela. _970045 |
| 830 | 0 |
_aBulletin _v; 2 _916039 |
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