- CONTROL DE INSECTOS 3
- ESTADOS UNIDOS 3
- ENTOMOLOGIA 2
- INSECTOS DAÑINOS 2
- ABASTECIMIENTO DE AGUA 1
- ACRIDIDAE 1
- AGRICULTURA 1
- AGUAS FECALES 1
- ANATOMIA 1
- ATLAS 1
- BOSQUES 1
- CLIMATOLOGIA 1
- COMPOST 1
- CONTROL 1
- DEMOGRAFIA 1
- DISPOSITIVOS DE SEGURIDAD 1
- ENERGIA NUCLEAR 1
- ENVENENAMIENTO 1
- ESTADISTICAS 1
- FERTILIZANTES 1
- FUMIGANTES 1
- HIDROLOGIA 1
- INFORMES METEOROLOGICOS 1
- INSECTICIDAS 1
- INSECTOS 1
- INSECTOS UTILES 1
- LANGOSTA 1
- METEOROLOGIA 1
- METODOS DE APLICACION 1
- OBSERVACIONES METEOROLOGICAS 1
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1
Statistical abstract of the United States 1979 /
Published 1979“…U.S. Department of Commerce,…”
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2
Hydrologic conditions and artificial recharge through a well in the Salem heights area of Salem, Oregon : artificial recharge of ground water /
Published 1970“…U.S. Government Printing Office,…”
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3
Uso seguro de pesticidas para los trabajadores del campo = Pesticide safety for farmworkers /
Published 1985“…U.S. Environmental Protection Agency,…”
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4
Utilization of sewage sludge compost as a soil conditioner and fertilizer for plant growth /
Published 1984“…U.S. Government Printing Office,…”
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5
Los Atomos y la agricultura : aplicaciones de la ciencia nuclear a la agricultura /
Published 1968“…U.S. Atomic Energy Commission,…”
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6
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7
Insects : the yearbook of agriculture 1952 /
Published 1952“…U.S. Government Printing Office,…”
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8
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9
Airway meteorological atlas for the United States /
Published 1941“…U.S. Works Progress Administration,…”
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