Cita APA (7a ed.)

National Council on Crime and Delinquency. (1970). Probation and parole directory United States and Canada (16. ed.). National Council on Crime and Delinquency.

Cita Chicago Style (17a ed.)

National Council on Crime and Delinquency. Probation and Parole Directory United States and Canada. 16. ed. New York, N.J: National Council on Crime and Delinquency, 1970.

Cita MLA (9a ed.)

National Council on Crime and Delinquency. Probation and Parole Directory United States and Canada. 16. ed. National Council on Crime and Delinquency, 1970.