Cita APA (7a ed.)

O'Leary, V., & Nuffield, J. E. (1972). The organization of parole systems in the United States (2. ed.). National Council on Crime and Delinquency.

Cita Chicago Style (17a ed.)

O'Leary, Vincent, y Joan E. Nuffield. The Organization of Parole Systems in the United States. 2. ed. Hackensack, N.J: National Council on Crime and Delinquency, 1972.

Cita MLA (9a ed.)

O'Leary, Vincent, y Joan E. Nuffield. The Organization of Parole Systems in the United States. 2. ed. National Council on Crime and Delinquency, 1972.