Cita APA (7th ed.)
Gifford, E. (1950). Surface Archaeology of Ixtlan del Rio, Nayarit.
Cita Chicago (17th ed.)
Gifford, E.W. Surface Archaeology of Ixtlan Del Rio, Nayarit. 1950.
Cita MLA (9th ed.)
Gifford, E.W. Surface Archaeology of Ixtlan Del Rio, Nayarit. 1950.
Atenció: Aquestes cites poden no estar 100% correctes.