Cita APA (7a ed.)

Krahn, H., & Kennedy, L. W. (1985). Producing personal safety: Parallel production, police, fear, and crime. Discussion paper.

Cita Chicago Style (17a ed.)

Krahn, Harvey, y Leslie W. Kennedy. "Producing Personal Safety: Parallel Production, Police, Fear, and Crime." Discussion Paper 1985.

Cita MLA (8a ed.)

Krahn, Harvey, y Leslie W. Kennedy. "Producing Personal Safety: Parallel Production, Police, Fear, and Crime." Discussion Paper, 1985.