Cita APA (7a ed.)

National Council on Crime and Delinquency. (1981). Probation and parole directory (18th ed.). National Council on Crime and Delinquency.

Cita Chicago Style (17a ed.)

National Council on Crime and Delinquency. Probation and Parole Directory. 18th ed. Hackensack, N.J: National Council on Crime and Delinquency, 1981.

Cita MLA (8a ed.)

National Council on Crime and Delinquency. Probation and Parole Directory. 18th ed. National Council on Crime and Delinquency, 1981.