Violanti, J. M. (1996). Police suicide: Epidemic in blue. American lecture series.
Cita Chicago Style (17a ed.)Violanti, John M. "Police Suicide: Epidemic in Blue." American Lecture Series 1996.
Cita MLA (8a ed.)Violanti, John M. "Police Suicide: Epidemic in Blue." American Lecture Series, 1996.
Precaución: Estas citas no son 100% exactas.