Cita APA (7th ed.)

Harrison, R. J. (1974). Europe in question: Theories of regional international integration. Allen & Unwin.

Cita Chicago (17th ed.)

Harrison, Reginald J. Europe in Question: Theories of Regional International Integration. London: Allen & Unwin, 1974.

Cita MLA (9th ed.)

Harrison, Reginald J. Europe in Question: Theories of Regional International Integration. Allen & Unwin, 1974.