@article{184566,
      note = {Distributed to depository libraries in microfiche.},
      author = {Desborough, George A.},
      url = {http://library.usi.edu/record/184566},
      title = {Ion-exchange of clinoptilolite-rich rocks in Argo drain  water at Idaho Springs, Colorado, and related experimental  aspects [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey :},
      recid = {184566},
      pages = {ii, 23 p. :},
      address = {[Denver, Colo.] :},
      year = {1993},
}