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2. A model of the evolution of Middle America and the Gulf of Mexico-Caribbean Sea region during Mesozoic time;Anderson;Geol. Soc. Am. Bull.,1983
3. Geology of western Altos Cuchumatanes, northwestern Guatemala;Anderson;Geol. Soc. Am. Bull.,1973
4. Blount , D. N. Geology of the Chiantla quadrangle, Guatemala Baton Rouge 1967
5. Blount , D. N. Geological map of Chiantla, Guatemala, Inst. Geogr. Nac., Guatem. Guatemala, C.A. 1968