IIlopango Volcano and the Maya protoclassicIlopango Volcano and the Maya protoclassicde Payson D. SheetsMateriasAntiquitiesIndians of Central AmericaMayasEdiciones (1)Ilopango Volcano and the Maya protoclassic (1976)University Museum, Southern Illinois University · inglésMás obras de Payson D. SheetsVolcanic activity and human ecologyEl Niño, catastrophism, and culture change in ancient AmericaArchaeology, volcanism, and remote sensing in the Arenal region, Costa Rica
11992 investigations at the Ceren Site, El Salvador1992 investigations at the Ceren Site, El Salvador
