Halperin, M. H., Siegle, J. T., & Weinstein, M. M. (2005). The democracy advantage: How democracies promote prosperity and peace. Routledge.
Citazione stile Chigago Style (17a edizione)Halperin, Morton H., Joseph T. Siegle, e Michael M. Weinstein. The Democracy Advantage: How Democracies Promote Prosperity and Peace. New York: Routledge, 2005.
Citatione MLA (9a ed.)Halperin, Morton H., et al. The Democracy Advantage: How Democracies Promote Prosperity and Peace. Routledge, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.