@article{138843,
      note = {Includes index.},
      author = {Crawford, John T. and Hustrulid, W. A.},
      url = {http://library.usi.edu/record/138843},
      title = {Open pit mine planning and design /},
      publisher = {Society of Mining Engineers of the American Institute of  Mining, Metallurgical, and Petroleum Engineers,},
      recid = {138843},
      pages = {367 p. :},
      address = {New York, N.Y. :},
      year = {1979},
}