Title: Volcanic activity and human occupation of the northern Andes : the application of tephrostratigraphic teachings to the problem of human settlement in the western montaña during the Ecuadorian formative /
Authors: Isaacson, John S., 1949-
Year: 1987
Subjects: Volcanoes Ecuador Pichincha (Province); Volcanological research; Human settlements Ecuador Pichincha (Province); Pichincha (Ecuador : Province) Antiquities.; Pichincha Province (Ecuador) Antiquities.