Cita APA (7th ed.)
Paddock, J. Differentiaton of obsidian sources in Mesoamerica.
Cita Chicago (17th ed.)
Paddock, John. Differentiaton of Obsidian Sources in Mesoamerica.
Cita MLA (9th ed.)
Paddock, John. Differentiaton of Obsidian Sources in Mesoamerica.
Atenció: Aquestes cites poden no estar 100% correctes.