APA
Grogger J., Willis Mike & National Bureau Of Economic Research. (1998). The introduction of crack cocaine and the rise in urban crime rates. Cambridge, MA: NBER.
Chicago
Grogger Jeff, Willis Mike and National Bureau Of Economic Research. 1998. The introduction of crack cocaine and the rise in urban crime rates. Cambridge, MA: NBER.
Harvard
Grogger J., Willis Mike and National Bureau Of Economic Research. (1998). The introduction of crack cocaine and the rise in urban crime rates. Cambridge, MA: NBER.
MLA
Grogger Jeff, Willis Mike and National Bureau Of Economic Research. The introduction of crack cocaine and the rise in urban crime rates. Cambridge, MA: NBER. 1998.
TextSeries: NBER Working Paper seriesPublication details: Cambridge, MA NBER 1998Description: 36pISBN: 
Working Papers (Print)
