Hughes, B. (1997). Continuity and change in world politics: Competing perspectives (3rd ed.). Prentice Hall.
Citazione stile Chigago Style (17a edizione)Hughes, Barry. Continuity and Change in World Politics: Competing Perspectives. 3rd ed. Upper Saddle River, N.J.: Prentice Hall, 1997.
Citatione MLA (9a ed.)Hughes, Barry. Continuity and Change in World Politics: Competing Perspectives. 3rd ed. Prentice Hall, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.