@article{216811,
      recid = {216811},
      author = {Ator, Scott W.},
      title = {Nitrate and pesticide data for waters of the Mid-Atlantic  Region /},
      publisher = {U.S. Geological Survey,},
      address = {[Baltimore, Md.] :},
      pages = {1 sheet ([2] p.) :},
      year = {1998},
      note = {"U.S. Department of the Interior, U.S. Geological  Survey"--p. [1].},
      url = {http://library.usi.edu/record/216811},
}