816 resultados para United States. Federal Extension Service.
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Includes bibliographical references.
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Issued May 1978.
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Mode of access: Internet.
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Mode of access: Internet.
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"Grant no. R804868020."
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Mode of access: Internet.
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Mode of access: Internet.
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Tables.
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Mode of access: Internet.
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Mode of access: Internet.
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Item 508.
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Mode of access: Internet.
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Bibliography: p. 46-48.
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Issued Aug. 1978.
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Cover title.