Cita APA (7th ed.)
Ruppert, K. (1952). Chichen Itza: Architectural Notes and Plans. Carnegie Institution.
Cita Chicago (17th ed.)
Ruppert, Karl. Chichen Itza: Architectural Notes and Plans. Washington, EUA: Carnegie Institution, 1952.
Cita MLA (9th ed.)
Ruppert, Karl. Chichen Itza: Architectural Notes and Plans. Carnegie Institution, 1952.
Atenció: Aquestes cites poden no estar 100% correctes.