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  1. 61
    Plan of work for cooperative hydrology investigations.
    Government Document Microform Serial
  2. 62
    Curricula in the atmospheric, oceanic, hydrologic, and related sciences.
    Published 1992
    Serial
  3. 63
    Information circular /
    Published 1985
    Serial
  4. 64
    Historical water levels summary to.
    Published 1978
    Government Document Serial
  5. 65
    Historical water levels summary to.
    Published 1978
    Government Document Serial
  6. 66
    Historical water levels summary to.
    Published 1978
    Government Document Serial
  7. 67
    Historical water levels summary to.
    Published 1978
    Government Document Serial
  8. 68
    Historical water levels summary to.
    Published 1978
    Government Document Serial
  9. 69
    Historical water levels summary to ... Sommaire chronologique des niveaux d'eau jusqu'à ...
    Published 1979
    Government Document Serial
  10. 70
    Historical water levels summary to.
    Published 1979
    Government Document Serial
  11. 71
    Permuted title index to water resources literature /
    Published 1968
    Serial
  12. 72
    Water research in Australia : current projects /
    Serial
  13. 73
    Water-resources activities of the U.S. Geological Survey in Montana.
    Government Document Microform Serial
  14. 74
    Guide to USGS publications.
    Published 1996
    Serial
  15. 75
    Model drainage manual.
    Published 1991
    Serial
  16. 76
    Hydrologic bulletin /
    Published 1941
    Serial
  17. 77
    Report.
    Published 1977
    Serial
  18. 78
    Annual report of hydrological research in the area of Lake Biwa.
    Serial
  19. 79
    Water-resources investigations in Wisconsin : programs and activities of the U.S. Geological Survey.
    Government Document Microform Serial
  20. 80
    The U.S. Geological Survey federal-state cooperative water resources program in fiscal year ...
    Government Document Microform Serial
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