Cita APA (7a ed.)

Knafla, L. A. (2003). Violent crime in North America. Criminal justice history.

Cita Chicago Style (17a ed.)

Knafla, Louis A. "Violent Crime in North America." Criminal Justice History 2003.

Cita MLA (8a ed.)

Knafla, Louis A. "Violent Crime in North America." Criminal Justice History, 2003.