@article{263525,
      recid = {263525},
      author = {Gibbs, James F.},
      title = {Seismic velocities from borehole measurements at four  locations along a fifty-kilometer section of the San  Andreas fault near Parkfield, California [microform] /},
      publisher = {U.S. Geological Survey :},
      address = {[Denver, Colo.? :},
      pages = {ii, 35 leaves :},
      year = {1990},
      note = {Distributed to depository libraries in microfiche.},
      url = {http://library.usi.edu/record/263525},
}