APA
Besley T. J., Persson Torsten & National Bureau Of Economic Research. (2008). The Incidence of Civil War: Theory and Evidence. Cambridge: NBER.
Chicago
Besley Timothy J, Persson Torsten and National Bureau Of Economic Research. 2008. The Incidence of Civil War: Theory and Evidence. Cambridge: NBER.
Harvard
Besley T. J., Persson Torsten and National Bureau Of Economic Research. (2008). The Incidence of Civil War: Theory and Evidence. Cambridge: NBER.
MLA
Besley Timothy J, Persson Torsten and National Bureau Of Economic Research. The Incidence of Civil War: Theory and Evidence. Cambridge: NBER. 2008.