Columbia subject headings:
Harvard subject headings:
Food industry and trade--United States--Data processing.
Food supply--United States--Data processing.
Grocery trade--United States--Data processing.
Year 2000 date conversion (Computer systems)--United States
Princeton subject headings:
Food industry and trade--United States--Data processing.
Food supply--United States--Data processing.
Grocery trade--United States--Data processing.
Year 2000 date conversion (Computer systems)--United States.