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_aHeadley, J. C. _953235 |
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_aThe pesticide problem _b: an economic approach to public policy |
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_aBaltimore : _bJohns Hopkins, _c1967 |
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_a141 p. _b: gráfs. |
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_aBATCH-UPD _b10 _c20130110 _lUCH01 _h0050 |
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_aPesticidas. _987536 |
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_aPesticidas _xEfecto en animales. _987546 |
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_aPesticidas _xEfecto en la vida silvestre. _987551 |
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_aPesticidas _xEfecto en plantas. _987553 |
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_aLewis, J. N. _966525 |
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