Commercial Crises -- See Depressions Subdivided by date and, if world wide, may be further subdivided by country, city, etc., e.g. Depressions--1929--United States; Depressions--1929--Illinois--Chicago
Commercial Geography -- See Also Economic geography Here are entered works on the branch of geography that deals with the relations of physical and economic conditions to the production and distribution of goods and services. Works on the economic geography of particular countries, cities, etc., are entered under the name of the place subdivided by Economic conditions.