APA
Azrael D., Miller Matthew, Cook Philip J & National Bureau Of Economic Research. (2001). State and local prevalence of firearms ownership: Measurement, structure, and trends. Cambridge, MA: NBER.
Chicago
Azrael Deborah, Miller Matthew, Cook Philip J and National Bureau Of Economic Research. 2001. State and local prevalence of firearms ownership: Measurement, structure, and trends. Cambridge, MA: NBER.
Harvard
Azrael D., Miller Matthew, Cook Philip J and National Bureau Of Economic Research. (2001). State and local prevalence of firearms ownership: Measurement, structure, and trends. Cambridge, MA: NBER.
MLA
Azrael Deborah, Miller Matthew, Cook Philip J and National Bureau Of Economic Research. State and local prevalence of firearms ownership: Measurement, structure, and trends. Cambridge, MA: NBER. 2001.