697 resultados para Geological Samples Library (Illinois State Geological Survey)
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On cover: Illinois traffic safety programs, report of evaluation or assessment.
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Cover title: Illinois traffic safety programs.
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Kept current with cumulative addenda.
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Has occasional updates issued between legislative sessions that include phone numbers.
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Cover title.
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Description based on: Jan. 1947; title from cover.
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Updates issued periodically.
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Bibliography: p. 29.
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Prepared by Philip C. Mankin, Jeffery L. Van Orman, Bruce D. Taubert, David P. Philipp.
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"April 1980."
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Mode of access: Internet.
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Exhibit guide inserted.
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Mode of access: Internet.
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Description based on: 1953.
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"May 2007"--T.p.