@article{121764,
      recid = {121764},
      author = {Bahls, Loren L. and Weber, E. E. and Jarvie, J. O.},
      title = {Ecology and distribution of major diatom ecotypes in the  southern Fort Union Coal Region of Montana /},
      publisher = {U.S. Dept. of the Interior, Geological Survey ;},
      address = {[Reston, Va.?] :},
      pages = {iv, 151 p. :},
      year = {1984},
      url = {http://library.usi.edu/record/121764},
}