Indexes of U.S. exports and imports by economic class: 1919 to 1971.
Publisher: For sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1972
Place of publication: [Washington
Language: eng
Number of pages: 27
Subjects: Commercial products -- Classification.; United States -- Commerce.
Notes: Cover title.
"This report has been prepared in the Foreign Trade Division, Program Coordination and Surveys Branch."