@article{195555,
      recid = {195555},
      author = {Lombardi, John A. and Jude, Charles V.},
      title = {Mechanical excavation systems [microform] /},
      publisher = {U.S. Dept. of the Interior, Bureau of Mines,},
      address = {[Washington, D.C.?] :},
      pages = {v. :},
      year = {1995},
      note = {Description based on pt. 3.},
      url = {http://library.usi.edu/record/195555},
}