Columbia subject headings:
European Economic Community countries--Commerce--United States.
Poultry industry--European Economic Community countries.
Poultry industry--United States.
United States--Commerce--European Economic Community countries.
Harvard subject headings:
European Economic Community countries--Commerce--United States.
Poultry industry--European Economic Community countries.
Poultry industry--United States.
United States--Commerce--European Economic Community countries.
Princeton subject headings:
European Economic Community countries--Commerce--United States.
Poultry industry--European Economic Community countries.
Poultry industry--United States.
United States--Commerce--European Economic Community countries.