Columbia subject headings:
Landscape architecture--Periodicals.
Landscape protection--Periodicals.
Regional planning--Periodicals.
Urban beautification--Periodicals.
Harvard subject headings:
City planning--Periodicals
Landscape architecture--Periodicals
Landscape protection--Periodicals.
Urban ecology (Sociology)--Periodicals.
Princeton subject headings:
Cities and towns--Periodicals.
Human ecology--Periodicals.
Landscape architecture--Periodicals.
Landscape protection--Periodicals.
Periodicals.