7Ronald V. Clarke. (1997).Situational Crime Prevention: Successful Case Studies, New York: Harrow and Heston Publishers, p.4.
8Ronald V. Clarke. (2009). "Situational Crime Prevention: Theoretical Background and Current Practice", in Handbook on Crime and Deviance Handbooks of Sociology and Social Research, edited by Marvin D. Krohn, Alan J. Lizotte and Gina Penly Hall. New York: Springer, p.267.
9Ronald V. Clarke.(2009). "Situational Crime Prevention: Theoretical Background and Current Practice", in Handbook on Crime and Deviance Handbooks of Sociology and Social Research, edited by Marvin D. Krohn, Alan J. Lizotte and Gina Penly Hall. New York: Springer ,pp. 263-266.
