@article{397446,
      author = {Caulkins, Jonathan P.},
      url = {http://library.usi.edu/record/397446},
      title = {An ounce of prevention, a pound of uncertainty the  cost-effectiveness of school-based drug prevention programs  / [electronic resource] :},
      publisher = {Rand,},
      recid = {397446},
      pages = {xxxiii, 194 p. :},
      address = {Santa Monica, CA :},
      year = {1999},
}