@article{239450,
      recid = {239450},
      author = {Ranalli, Anthony J.},
      title = {Precipitation-chemistry data at selected sites in  northwestern Colorado, 1980-94 [microform] /},
      publisher = {U.S. Geological Survey ;},
      address = {Denver, Colo. :},
      pages = {iii, 83 p. :},
      year = {1997},
      note = {Shipping list no.: 2000-0887-M.},
      url = {http://library.usi.edu/record/239450},
}