Columbia subject headings:
Supermarkets.
Harvard subject headings:
Chain stores--Europe--History.
Chain stores--Great Britain--History.
Chain stores--United States--History.
Grocery trade--Europe--History.
Grocery trade--Great Britain--History.
Grocery trade--United States--History.
Supermarkets--Europes--History.
Supermarkets--Great Britain--History.
Supermarkets--United States--History.
Princeton subject headings: