@article{216279,
      note = {Blue line print.},
      author = {Orndorff, Randall C. and Harrison, Richard W.},
      url = {http://library.usi.edu/record/216279},
      title = {Preliminary geologic map of the Spring Valley 30ʹ x 60ʹ  quadrangle, Missouri /},
      publisher = {The Survey,},
      recid = {216279},
      pages = {1 map :},
      address = {[Reston, Va.?] :},
      year = {1997},
}