Ratcliffe, J., & Groff, E. (2017). Quantifying the Size and Geographic Extent of CCTV's Impact on Reducing Crime in Philadelphia, Pennsylvania, 2003-2013. [Verlag nicht ermittelbar]. https://doi.org/10.3886/ICPSR35514.v1
Chicago-Zitierstil (17. Ausg.)Ratcliffe, Jerry, und Elizabeth Groff. Quantifying the Size and Geographic Extent of CCTV's Impact on Reducing Crime in Philadelphia, Pennsylvania, 2003-2013. [Erscheinungsort nicht ermittelbar]: [Verlag nicht ermittelbar], 2017. https://doi.org/10.3886/ICPSR35514.v1.
MLA-Zitierstil (9. Ausg.)Ratcliffe, Jerry, und Elizabeth Groff. Quantifying the Size and Geographic Extent of CCTV's Impact on Reducing Crime in Philadelphia, Pennsylvania, 2003-2013. [Verlag nicht ermittelbar], 2017. https://doi.org/10.3886/ICPSR35514.v1.