@article{256094,
      recid = {256094},
      author = {Hough, Susan Elizabeth,},
      title = {On the modified Mercalli intensities and magnitudes of the  1811/1812 New Madrid, central United States, earthquakes  [microform] /},
      publisher = {U.S. Geological Survey ;},
      address = {[Menlo Park, CA] :},
      pages = {46 leaves :},
      year = {1999},
      note = {Shipping list no.: 2002-0124-M.},
      url = {http://library.usi.edu/record/256094},
}