@article{175599,
      author = {Rexroad, Carl Buckner, and Scott, Alan Johnson,},
      url = {http://library.usi.edu/record/175599},
      title = {Conodont zones in the Rockford Limestone and the lower  part of the New Providence Shale (Mississippian) in  Indiana,},
      publisher = {For sale by Geological Survey, Indiana Dept. of  Conservation,},
      recid = {175599},
      pages = {54 p.},
      address = {Bloomington,},
      year = {1964},
}