Cita APA (7th ed.)
Bushnell, G. (1968). The first Americans: The pre-columbian civilizations. Ediciones Lara.
Cita Chicago (17th ed.)
Bushnell, G.H.S. The First Americans: The Pre-columbian Civilizations. México, D.F.: Ediciones Lara, 1968.
Cita MLA (9th ed.)
Bushnell, G.H.S. The First Americans: The Pre-columbian Civilizations. Ediciones Lara, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.