Here are entered works on densely populated, usually deteriorating, central areas of large cities, inhabited predominantly by poor people, often of a specific ethnic group, and on the social and economic problems of these areas.
Here are entered general works on urban parks and works limited to urban parks of regions, countries, states, etc. Works on parks of individual cities, city regions or metropolitan areas are entered under the heading Parks with local subdivision.
Here are entered works on the determination of production and the allocation of resources by the central government rather than by the marketplace. When this heading is subdivided by place, a second subject heading is assigned for the name of the place with the subdivision Economic policy, e.g. 1. Central planning--Soviet Union. 2. Soviet Union--Economic policy.
Here are entered works on the area included in the basins of the Danube, Elbe, and Rhine rivers. Works on the region extending from the western borders of Poland, the Czech Republic, Slovakia, Hungary, and Slovenia eastward to the Ural Mountains, and sometimes expanded to include East Germany, are entered under Europe, Eastern.
