Cita APA (7th ed.)
Ekholm, S. M. (1969). Mound 30a and the Early Preclassic Ceramic Sequence of Izapa, Chiapas, Mexico. Brigham Young University, New World Archaeological Foundation.
Cita Chicago (17th ed.)
Ekholm, Susanna M. Mound 30a and the Early Preclassic Ceramic Sequence of Izapa, Chiapas, Mexico. Provo, EUA: Brigham Young University, New World Archaeological Foundation, 1969.
Cita MLA (9th ed.)
Ekholm, Susanna M. Mound 30a and the Early Preclassic Ceramic Sequence of Izapa, Chiapas, Mexico. Brigham Young University, New World Archaeological Foundation, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.