Columbia subject headings:
Foreign trade promotion--Soviet Union--Directories.
Soviet Union--Commerce--Directories.
Soviet Union. Ministerstvo vneshneĭ torgovli--Registers.
Harvard subject headings:
Foreign trade promotion--Soviet Union--Directories.
Soviet Union--Commerce--Directories.
Soviet Union. Ministerstvo vneshneĭ torgovli--Registers.
Princeton subject headings:
Directories.
Foreign trade promotion--Soviet Union--Directories.
Soviet Union--Commerce--Directories.
Soviet Union. Ministerstvo vneshneĭ torgovli--Registers.