Here are entered works on foreign-born persons who enter a country intending to become permanent residents or citizens. Works on persons who change their place of residence from one locality to another within the borders of a single country are entered under Internal migrants.This heading may be locally subdivided by names of places where immigrants settle.For works discussing emigrants from a particular place, an additional heading is assigned to designate the nationality of origin of the emigrant group and the place to which they have immigrated, e.g. Chinese--United States; Americans--Foreign countries.
Here are entered works on trade among nations. Works on foreign trade of specific countries, cities, etc. are entered under headings of the type [place]--Commerce, further subdivided by place, if appropriate. If so subdivided, a second heading is assigned with the place names in reverse positions, e.g. 1. Canada--Commerce--United States. 2. United States--Commerce--Canada.
Here are entered works on corporations operating in countries (or states of the United States) other than those countries (or states of the United States) under whose laws they were organized. Works on corporations organized under the laws of an individual country and operating outside that country are entered under headings of the type Corporations, [nationality], with further subdivision by place, if any, in which the corporations are operating, e.g. Corporations, American--France.