971 resultados para National Natural Landmarks Program (U.S.)
Resumo:
Mode of access: Internet.
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"July 1995."
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"HRDI-13/11-06(500)E"--P. [4] of cover.
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Mode of access: Internet.
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"March 1994."
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"July 1994."
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Mode of access: Internet.
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"August 1994."
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"August 1995."
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"October 1994."
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Description based on: No. 2 (1982); ceased with no. 9, 1986.
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Produced under contract J-LEAA-013-81.
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"April 1994."