@article{11809,
      recid = {11809},
      author = {Ault, Curtis H. and Carr, Donald D.},
      title = {Directory of crushed stone, ground limestone, cement, and  lime producers in Indiana /},
      publisher = {Indiana Geological Survey,},
      address = {Bloomington, Ind. :},
      pages = {31 . :},
      year = {1977},
      url = {http://library.usi.edu/record/11809},
}