@article{75837,
      recid = {75837},
      author = {Freeman, Louise B.},
      title = {Regional aspects of Silurain and Devonian stratigraphy in  Kentucky /},
      publisher = {University of Kentucky,},
      address = {Lexington :},
      pages = {565 p. :},
      year = {1951},
      url = {http://library.usi.edu/record/75837},
}