Columbia subject headings:
AgExport Connections (U.S.)--Handbooks, manuals, etc.
Export marketing--United States--Handbooks, manuals, etc.
Produce trade--United States--Handbooks, manuals, etc.
United States. Foreign Agricultural Service--Handbooks, manuals, etc.
Harvard subject headings:
AgExport Connections (U.S.)--Handbooks, manuals, etc.
Export marketing--United States--Handbooks, manuals, etc.
Produce trade--United States--Handbooks, manuals, etc.
United States. Foreign Agricultural Service--Handbooks, manuals, etc.
Princeton subject headings: