Columbia subject headings:
Harvard subject headings:
Businessmen--Switzerland--Biography.
Denner AG--History.
Retail trade--Switzerland--History.
Schweri, Karl, 1917-2001.
Supermarkets--Switzerland--History.
Princeton subject headings:
Businessmen--Switzerland--Biography.
Denner AG--History.
Retail trade--Switzerland--History.
Schweri, Karl, 1917-2001.
Supermarkets--Switzerland--History.