@article{198464,
      note = {Distributed to depository libraries in microfiche.},
      author = {Atwood, John W.},
      url = {http://library.usi.edu/record/198464},
      title = {User documentation for North Dakota Geochemical Data-Base  System--input, update, and retrieval procedures [microform]  /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      recid = {198464},
      pages = {iv, 28 p. :},
      address = {Bismarck, N.D. :},
      year = {1993},
}