Revision History for USGS Open-File Report 76-231

  James F. Gibbs, Thomas E. Fumal, and Roger D. Borcherdt

  In-Situ Measurements of Seismic Velocities in the San 
  Francisco Bay Region; Part II

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  Reformatted citation August 13, 2009

  Posted online August 12, 2009

  Released in paper form 1976

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