Cita APA (7th ed.)
Katz, F. (1972). The ancient american civilisations. Weidenfeld and Nicholson.
Cita Chicago (17th ed.)
Katz, Friedrich. The Ancient American Civilisations. Londres: Weidenfeld and Nicholson, 1972.
Cita MLA (9th ed.)
Katz, Friedrich. The Ancient American Civilisations. Weidenfeld and Nicholson, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.