Columbia subject headings:
Architecture--Portugal--Periodicals.
City planning--Periodicals.
City planning--Portugal--Periodicals.
Regional planning--Portugal--Periodicals.
Harvard subject headings:
City planning--Portugal--Periodicals.
Land use--Portugal--Planning--Periodicals.
Princeton subject headings:
City planning--Portugal--Periodicals.
Land use--Portugal--Planning--Periodicals.
Periodicals.