816 resultados para United States. Federal Extension Service.
Resumo:
"June 1990."
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"October 1991."
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"March 2002."
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Mode of access: Internet.
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Mode of access: Internet.
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Federal Highway Administration, Office of Research, Washington, D.C.
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Mode of access: Internet.
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Sponsored by U. S. Dept. of Energy, Transportation Energy Conservation Division, Non-Highway Transport Systems Branch.
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Cover title.
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Mode of access: Internet.
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Mode of access: Internet.
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Photostat copy.
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"Report no. CG-D-50-80."
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At head of title: Environmental Impact Research Program
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Feb. 1980.