Roskin, M. (2011). Countries and concepts: Politics, geography, culture (International ed., 11. ed.). Longman.
Citazione stile Chigago Style (17a edizione)Roskin, Michael. Countries and Concepts: Politics, Geography, Culture. International ed., 11. ed. Boston [u.a.]: Longman, 2011.
Citatione MLA (9a ed.)Roskin, Michael. Countries and Concepts: Politics, Geography, Culture. International ed., 11. ed. Longman, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.