Showing 1 - 2 results of 2 for search '"geologic time scale"', query time: 0.06s Refine Results
  1. 1
    Stratigraphy and the geologic time scale
    by John W Harbaugh
    Published 1978
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  2. 2
    A geologic time scale
    by WB Harland ... [et.al]
    Published 1982
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