998 resultados para Experimental stations
Resumo:
1914pt.2
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1893
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191011
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1913
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1901
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1897
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Mode of access: Internet.
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Description based on: 1971.
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Mode of access: Internet.
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"In cooperation with state Agricultural Experiment Stations."
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Issued Jan. 1980.
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Prepared in cooperation with State agricultural experiment stations.
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"Prepared by Science and Education Administration."
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Prepared in cooperation with state agricultural experiment stations.
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Mode of access: Internet.