Cita APA (7a ed.)

Chappell, D., & Chappell, D. (1979). Sentencing: Reform options. Discussion paper.

Cita Chicago Style (17a ed.)

Chappell, Duncan, y Duncan Chappell. "Sentencing: Reform Options." Discussion Paper 1979.

Cita MLA (8a ed.)

Chappell, Duncan, y Duncan Chappell. "Sentencing: Reform Options." Discussion Paper, 1979.