TY  - BOOK
AU  - Chalfin, Aaron
AU  - Mccrary, Justin
ED  - National Bureau of Economic Research
TI  - The Effect of police on crime: New evidence from U.S. cities, 1960-2010 
T2  - NBER Working Paper
PY  - 2013///
CY  - Cambridge
PB  - NBER
KW  - NBERWP 18815
KW  - E9447.pdf
UR  - http://elibrary.igidr.ac.in/e-library/working papers/NBER/2013/E9447.pdf
ER  -