997 resultados para PD control
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Mode of access: Internet.
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"August 2000"--Cover.
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Description based on: Spring 1996; title from cover.
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March 1982
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In 1879 the Dept. of public works was reorganized, and the Dept. of railways and canals was formed, the duties of the former department being divided between them.
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Mode of access: Internet.
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Hearings held May 22-July 24, 1969.
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Mode of access: Internet.
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Mode of access: Internet.
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Includes bibliographies.
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Mode of access: Internet.
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Includes bibliographies.
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Appendices (p. 1-14): A. Model state act for soil erosion and sediment control--B. Selected bibliography on sediment control.
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Mode of access: Internet.
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Mode of access: Internet.