Columbia subject headings:
Architecture--Periodicals.
Architecture--Spain--Periodicals.
City planning--Periodicals.
City planning--Spain--Periodicals.
Harvard subject headings:
Architecture--Periodicals
Architecture--Spain--Periodicals.
City planning--Periodicals
City planning--Spain--Periodicals.
Princeton subject headings:
Architecture--Periodicals.
Architecture--Spain--Periodicals.
City planning--Periodicals.
City planning--Spain--Periodicals.
Periodicals.