Columbia subject headings:
Alabama--Maps.
Animal ecology--Alabama--Maps.
City planning--Alabama--Maps.
Industries--Alabama--Maps.
Maps.
Natural resources--Alabama--Maps.
Plant ecology--Alabama--Maps.
Harvard subject headings:
Alabama--Maps.
Natural resources--Alabama.
Princeton subject headings:
Animal ecology--Alabama--Maps.
City planning--Alabama--Maps.
Industries--Alabama--Maps.
Natural resources--Alabama--Maps.
Plant ecology--Alabama--Maps.