@article{198471,
      note = {Distributed to depository libraries in microfiche.},
      author = {Walker, J. F.},
      url = {http://library.usi.edu/record/198471},
      title = {Techniques for detecting effects of urban and rural  land-use practices on stream-water chemistry in selected  watersheds in Texas, Minnesota, and Illinois [microform] /},
      publisher = {U.S. Dept. of the Interior, U.S. Geological Survey ;},
      recid = {198471},
      pages = {iv, 16 p. :},
      address = {Madison, Wis. :},
      year = {1993},
}