Cita APA (7a ed.)

Toynbee, A. J. The breakdowns of civilizations (7a ed.).

Cita Chicago Style (17a ed.)

Toynbee, Arnold J. The Breakdowns of Civilizations. 7a ed.

Cita MLA (8a ed.)

Toynbee, Arnold J. The Breakdowns of Civilizations. 7a ed.