Columbia subject headings:
Harvard subject headings:
Equality--Hungary.
Equality--Poland.
Hungary--Social conditions--1945-
Hungary--Social conditions--1945-1989
Poland--Social conditions
Social classes--Hungary
Social classes--Poland
Princeton subject headings:
Equality--Hungary.
Equality--Poland.
Hungary--Social conditions--1945-1989.
Poland--Social conditions.
Social classes--Hungary.
Social classes--Poland.