Columbia subject headings:
Central spaces--Ecuador--Maps.
Ecuador--Economic conditions--Maps.
Ecuador--Population--Statistics--Maps.
Ecuador--Social conditions--Regional disparities--Maps.
Land settlement--Economic aspects--Ecuador--Maps.
Land settlement--Social aspects--Ecuador--Maps.
Maps.
Space in economics--Social aspects--Ecuador--Maps.
Harvard subject headings:
Central spaces--Ecuador--Maps.
Ecuador--Economic conditions--Regional disparities--Maps.
Ecuador--Population--Statistics--Maps.
Ecuador--Social conditions--Regional disparities--Maps.
Land settlement--Economic aspects--Ecuador--Maps.
Land settlement--Social aspects--Ecuador--Maps.
Space in economics--Social aspects--Ecuador--Maps.
Princeton subject headings: