Columbia subject headings:
Harvard subject headings:
Retail trade--Directories.
Retail trade--Europe--Directories.
Retail trade--Europe--Statistics--Periodicals.
Retail trade--Germany--Directories.
Retail trade--Germany--Statistics--Periodicals.
Retail trade--Statistics--Periodicals.
Princeton subject headings:
Europe--Commerce--Periodicals.
Germany--Commerce--Periodicals.
Periodicals.
Retail trade--Europe--Periodicals.
Retail trade--Germany--Periodicals.
Retail trade--Periodicals.