Columbia subject headings:
Liberia--Economic conditions--Maps.
Liberia--Maps.
Liberia--Social conditions--Maps.
Liberia--Statistics.
Maps.
Planning--Liberia--Maps.
Harvard subject headings:
Liberia--Economic conditions--Maps.
Liberia--Maps.
Liberia--Social conditions--Maps.
Liberia--Statistics.
Planning--Liberia--Maps.
Princeton subject headings: