Cita APA (7a ed.)

Jacobson, J., & Saville, E. (1999). Neighbourhood warden schemes: An overview. Crime reduction research series paper.

Cita Chicago Style (17a ed.)

Jacobson, Jessica, y Esther Saville. "Neighbourhood Warden Schemes: An Overview." Crime Reduction Research Series Paper 1999.

Cita MLA (9a ed.)

Jacobson, Jessica, y Esther Saville. "Neighbourhood Warden Schemes: An Overview." Crime Reduction Research Series Paper, 1999.