Here are entered general works on plants in urban areas. This heading may be divided geographically by names of individual regions, countries, states, etc. Works on plants in specific cities or other urban areas are entered under the heading Plants with the appropriate geographic subdivision.
Here are entered general works on schools in urban areas. This heading may be divided geographically by names of individual regions, countries, states, etc. Works on schools in specific cities or other urban areas are entered under the heading Schools with the appropriate geographic subdivision.
Here are entered general works on cities in which the population and economic activity have declined. This heading may be divided geographically by names of individual regions, countries, states, etc. Works on the decline of specific cities are entered under the heading for the city with subdivisions such as --Economic conditions; --Population, etc., as appropriate.
