Columbia subject headings:
Dairy products industry--United States--Statistics--Periodicals.
Egg trade--United States--Statistics--Periodicals.
Meat industry and trade--United States--Statistics--Periodicals.
Poultry industry--United States--Statistics--Periodicals.
Harvard subject headings:
Dairy products industry--United States--Statistics--Periodicals.
Egg trade--United States--Statistics--Periodicals.
Meat industry and trade--United States--Statistics--Periodicals
Poultry industry--United States--Statistics--Periodicals.
Princeton subject headings: