筛选: Committee Davis III, David, Emory University 删除限定条件 Committee: Davis III, David, Emory University Committee Wolf, Aaron, Oregon State University Dept. of Geosciences 删除限定条件 Committee: Wolf, Aaron, Oregon State University Dept. of Geosciences Research Field Geography 删除限定条件 Research Field: Geography Research Field Political Science, General 删除限定条件 Research Field: Political Science, General