Trade Free -- See Free trade Here are entered works on trade between countries, free from government restrictions or duties.
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Trade International -- See International trade 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.
--subdivision Trademarks under individual industries and products for works listing or discussing the words, letters, or symbols adopted and used by the manufacturers or dealers of these items to distinguish them from the goods of others, e.g. Construction industry--Trademarks; Automobiles--Trademarks
