Cita APA (7th ed.)
Haviland, W. A. (1968). Ancient lowland Maya social organization. Middle American Research Institute, Tulane University.
Cita Chicago (17th ed.)
Haviland, William A. Ancient Lowland Maya Social Organization. New Orleans: Middle American Research Institute, Tulane University, 1968.
Cita MLA (9th ed.)
Haviland, William A. Ancient Lowland Maya Social Organization. Middle American Research Institute, Tulane University, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.