Barker, J. C. (1991). Danger, duty and daily life: Phases in the career of urban patrol officers.
Cita Chicago Style (17a ed.)Barker, Johanna C. Danger, Duty and Daily Life: Phases in the Career of Urban Patrol Officers. 1991.
Cita MLA (8a ed.)Barker, Johanna C. Danger, Duty and Daily Life: Phases in the Career of Urban Patrol Officers. 1991.
Precaución: Estas citas no son 100% exactas.