1. Mapa Geologico de la Republica de Honduras: Institute Geografico Nacional de Honduras, Scale 1: 500,000;Aceituno,1974
2. Post-Cretaceous strike-slip offset along the Chixoy-Polochic fault zone, Guatemala;Anderson,1980
3. Geology of the Chiantla quadrangle, Guatemala;Blount,1967
4. Geologic reconnaissance of the Alta Verapaz fold belt, Guatemala;Bonis,1967
5. Mapa Geologico de la Republica de Guatemala;Bonis,1970