@article{13375,
      author = {Shaver, Robert Harold,},
      url = {http://library.usi.edu/record/13375},
      title = {The search for a Silurian reef model, Great Lakes area /},
      publisher = {Dept. of Natural Resources, Geological Survey,},
      recid = {13375},
      pages = {36 p. :},
      address = {Bloomington :},
      year = {1978},
}