APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.