APA-čujuhus (7. p.)
Ekholm-Miller, S. (1973). The Olmec rock carving at Xoc, Chiapas, Mexico. New World Archaeological Foundation.
Chicago-čujuhus (17. p.)
Ekholm-Miller, Susanna. The Olmec Rock Carving at Xoc, Chiapas, Mexico. Provo, Utah: New World Archaeological Foundation, 1973.
MLA-čujuhus (9. p.)
Ekholm-Miller, Susanna. The Olmec Rock Carving at Xoc, Chiapas, Mexico. New World Archaeological Foundation, 1973.
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