@article{419890,
      recid = {419890},
      title = {Drilling and excavation technologies for the future  [electronic resource] /},
      publisher = {National Academy Press,},
      address = {Washington, D.C. :},
      pages = {xiv, 161 p. :},
      year = {1994},
      url = {http://library.usi.edu/record/419890},
}