@article{240759,
      note = {Cover title.},
      author = {Stewart, M. and Johnston, M. J. S.},
      url = {http://library.usi.edu/record/240759},
      title = {Bulk and shear moduli of near-surface geologic units near  the San Andreas fault at Parkfield, California [microform]  /},
      publisher = {U.S. Geological Survey,},
      recid = {240759},
      pages = {23 leaves :},
      address = {[Menlo Park, CA] :},
      year = {1993},
}