Columbia subject headings:
Segregation--Congresses.
Social distance--Congresses.
Social justice--Congresses.
Urban policy--Moral and ethical aspects--Congresses.
Harvard subject headings:
Segregation--Congresses.
Social distance--Congresses.
Social justice--Congresses
Urban policy--Moral and ethical aspects--Congresses.
Princeton subject headings:
Segregation--Congresses.
Social distance--Congresses.
Social justice--Congresses.
Urban policy--Moral and ethical aspects--Congresses.