Cita APA (7th ed.)
Hammond, N., & Willey, G. R. Maya Archaeology and Ethnohistory. University of Texas.
Cita Chicago (17th ed.)
Hammond, Norman, i Gordon R. Willey. Maya Archaeology and Ethnohistory. Austin, EUA: University of Texas.
Cita MLA (9th ed.)
Hammond, Norman, i Gordon R. Willey. Maya Archaeology and Ethnohistory. University of Texas.
Atenció: Aquestes cites poden no estar 100% correctes.