Cita APA (7a ed.)

Leukefeld, C., Staton, M., & Webster, M. (2003). An employment intervention for drug-abusing offenders. Federal probation, 67(2), 27-31.

Cita Chicago Style (17a ed.)

Leukefeld, Carl, Michele Staton, y Matthew Webster. "An Employment Intervention for Drug-abusing Offenders." Federal Probation 67, no. 2 (2003): 27-31.

Cita MLA (9a ed.)

Leukefeld, Carl, et al. "An Employment Intervention for Drug-abusing Offenders." Federal Probation, vol. 67, no. 2, 2003, pp. 27-31.