National Council on Crime and Delinquency Research Center & Emrich, R. L. (1975). Evaluating the prevention or preventing the evaluatiuon: A survey of drug prevention program evaluations. National Council on Crime and Delinquency, Research Center.
Cita Chicago Style (17a ed.)National Council on Crime and Delinquency Research Center y Robert L. Emrich. Evaluating the Prevention or Preventing the Evaluatiuon: A Survey of Drug Prevention Program Evaluations. Lafayette, Calif: National Council on Crime and Delinquency, Research Center, 1975.
Cita MLA (9a ed.)National Council on Crime and Delinquency Research Center y Robert L. Emrich. Evaluating the Prevention or Preventing the Evaluatiuon: A Survey of Drug Prevention Program Evaluations. National Council on Crime and Delinquency, Research Center, 1975.