APA-viite (7. p.)
Navarrete, C. (1974). The Olmec rock carvings at Pijijiapan, Chiapas, Mexico and other olmec pieces from Chiapas and Guatemala. New World Archaeological Foundation.
Chicago-viite (17. p.)
Navarrete, Carlos. The Olmec Rock Carvings at Pijijiapan, Chiapas, Mexico and Other Olmec Pieces from Chiapas and Guatemala. Provo, Utah: New World Archaeological Foundation, 1974.
MLA-viite (9. p.)
Navarrete, Carlos. The Olmec Rock Carvings at Pijijiapan, Chiapas, Mexico and Other Olmec Pieces from Chiapas and Guatemala. New World Archaeological Foundation, 1974.
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