Columbia subject headings:
Soviet Union--Foreign relations--Switzerland.
Switzerland--Foreign relations--Soviet Union.
Harvard subject headings:
Soviet Union--Foreign relations--Switzerland.
Switzerland--Foreign relations--Soviet Union.
Vorovskiĭ, V. V. (Vat︠s︡lav Vat︠s︡lavovich), 1871-1923
Princeton subject headings:
Soviet Union--Foreign relations--Switzerland.
Switzerland--Foreign relations--Soviet Union.
Vorovskiĭ, V. V. (Vat︠s︡lav Vat︠s︡lavovich), 1871-1923.