@article{10758,
      url = {http://library.usi.edu/record/10758},
      title = {Benefit/cost analyses of laws and regulations affecting  coal : case studies on reclamation, air pollution, and  health and safety laws and regulations : final report /},
      publisher = {For sale by the Supt. of Docs.,},
      recid = {10758},
      pages = {ca. 750 p. :},
      address = {Washington :},
      year = {1977},
}