Harrison, R. J. (1974). Europe in question: Theories of regional international integration. New York University Press.
Citazione stile Chigago Style (17a edizione)Harrison, Reginald J. Europe in Question: Theories of Regional International Integration. New York: New York University Press, 1974.
Citatione MLA (9a ed.)Harrison, Reginald J. Europe in Question: Theories of Regional International Integration. New York University Press, 1974.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.