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Glacial Age Marsh, Lafayette Park, Washington, D.C

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Science  22 Aug 1969:
Vol. 165, Issue 3895, pp. 795-797
DOI: 10.1126/science.165.3895.795

Article Information

vol. 165 no. 3895 795-797

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Author Information

  1. Arthur S. Knox1
  1. 1U.S. Geological Survey, Washington, D.C. 20242

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