Cita APA (7a ed.)

Heller, N. B. (1972). The use of an incident seriousness index in the development of police patrol manpower: Methods and conclusions. NTIS.

Cita Chicago Style (17a ed.)

Heller, Nelson B. The Use of an Incident Seriousness Index in the Development of Police Patrol Manpower: Methods and Conclusions. Springfield, Va: NTIS, 1972.

Cita MLA (8a ed.)

Heller, Nelson B. The Use of an Incident Seriousness Index in the Development of Police Patrol Manpower: Methods and Conclusions. NTIS, 1972.