Cita APA (7a ed.)

Sweet, R. W. j. (1990). Drug recognition techniques: A training program for juvenile justice professionals. NIJ reports / U.S. Department of Justice, Office of Justice Programs, 221, 15-18.

Cita Chicago Style (17a ed.)

Sweet, Robert W. jr. "Drug Recognition Techniques: A Training Program for Juvenile Justice Professionals." NIJ Reports / U.S. Department of Justice, Office of Justice Programs 221 (1990): 15-18.

Cita MLA (8a ed.)

Sweet, Robert W. jr. "Drug Recognition Techniques: A Training Program for Juvenile Justice Professionals." NIJ Reports / U.S. Department of Justice, Office of Justice Programs, 221, 1990, pp. 15-18.