Cita APA (7th ed.)
Paddock, J. National geographic proposal (Teotihuacan survey).
Cita Chicago (17th ed.)
Paddock, John. National Geographic Proposal (Teotihuacan Survey).
Cita MLA (9th ed.)
Paddock, John. National Geographic Proposal (Teotihuacan Survey).
Atenció: Aquestes cites poden no estar 100% correctes.