Columbia subject headings:
Kievan Rus--Foreign relations--Handbooks, manuals, etc.
Russia--Foreign relations--Handbooks, manuals, etc.
Soviet Union--Foreign relations--Handbooks, manuals, etc.
Harvard subject headings:
Kievan Rus--Foreign relations--Handbooks, manuals, etc.
Russia--Foreign relations--Handbooks, manuals, etc.
Soviet Union--Foreign relations--Handbooks, manuals, etc.
Princeton subject headings:
Kievan Rus--Foreign relations--Handbooks, manuals, etc.
Russia--Foreign relations--Handbooks, manuals, etc.
Soviet Union--Foreign relations--Handbooks, manuals, etc.