Terra, Helmut de (1947-07-01). "Preliminary Note on the Discovery of Fossil Man at Tepexpan in the Valley of Mexico". American Antiquity. 13 (1): 40–44. doi:10.2307/275752. JSTOR275752. S2CID163184882.
Terra, Helmut de (1947-07-01). "Preliminary Note on the Discovery of Fossil Man at Tepexpan in the Valley of Mexico". American Antiquity. 13 (1): 40–44. doi:10.2307/275752. JSTOR275752. S2CID163184882.
Krieger, Alex D.. 1949. Review of Tepexpan Man. Viking Fund Publications in Anthropology, N° 11. B.B.A.A. Boletín Bibliográfico De Antropología Americana 12 (2). Pan American Institute of Geography and History: 279–85. JSTOR40973292.
Terra, Helmut de (1947-07-01). "Preliminary Note on the Discovery of Fossil Man at Tepexpan in the Valley of Mexico". American Antiquity. 13 (1): 40–44. doi:10.2307/275752. JSTOR275752. S2CID163184882.