Hewitt, D. (1991). Military Expenditure: International Comparison of Trends. International Monetary Fund.
Citazione stile Chigago Style (17a edizione)Hewitt, Daniel. Military Expenditure: International Comparison of Trends. Washington, D.C.: International Monetary Fund, 1991.
Citatione MLA (8a ed.)Hewitt, Daniel. Military Expenditure: International Comparison of Trends. International Monetary Fund, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.