Explaining Delinquency and Drug Use by Delbert S. Elliott, David Huizinga, and Suzanne S. Ageton.Taking Care of Business: The Economics of Crime by Heroin Abusers by Bruce D. Johnson, Paul J. Goldstein, Edward Preeble, James Schmeidler, Douglas S. Lipton, Barry Spunt, and Thomas Miller.Pathways from Heroin Addiction: Recovery Without Treatment by Patrick Biernacki.