APA
Putterman L., Weil David N & National Bureau Of Economic Research. (2008). Post-1500 Population Flows and the Long Run Determinants of. Cambridge: NBER.
Chicago
Putterman Louis, Weil David N and National Bureau Of Economic Research. 2008. Post-1500 Population Flows and the Long Run Determinants of. Cambridge: NBER.
Harvard
Putterman L., Weil David N and National Bureau Of Economic Research. (2008). Post-1500 Population Flows and the Long Run Determinants of. Cambridge: NBER.
MLA
Putterman Louis, Weil David N and National Bureau Of Economic Research. Post-1500 Population Flows and the Long Run Determinants of. Cambridge: NBER. 2008.