Cita APA (7th ed.)
Toynbee, A. J. Mankind and Mother Earth: A Narrative History of the World. Oxford University.
Cita Chicago (17th ed.)
Toynbee, Arnold J. Mankind and Mother Earth: A Narrative History of the World. Nueva York, EUA: Oxford University.
Cita MLA (9th ed.)
Toynbee, Arnold J. Mankind and Mother Earth: A Narrative History of the World. Oxford University.
Atenció: Aquestes cites poden no estar 100% correctes.