@article{298215,
      note = {"November 2004"},
      author = {Caulkins, Jonathan P.},
      url = {http://library.usi.edu/record/298215},
      title = {The price and purity of illicit drugs : 1981 through the  second quarter of 2003 /},
      publisher = {Executive Office of the President, Office of National Drug  Control Policy,},
      recid = {298215},
      pages = {1 v. (various pagings) :},
      address = {Washington, D.C. :},
      year = {2004},
}