Cita APA (7a ed.)

Charles, R. (1977). Probation and resources. National Association of Probation Officers.

Cita Chicago Style (17a ed.)

Charles, Richard. Probation and Resources. Thornton Heath, Surrey: National Association of Probation Officers, 1977.

Cita MLA (9a ed.)

Charles, Richard. Probation and Resources. National Association of Probation Officers, 1977.