Columbia subject headings:
Harvard subject headings:
Crimean Khanate--Foreign relations--Russia.
Crimean Tatars--History--16th century.
Russia--Boundaries.
Russia--Foreign relations--To 1689.
Russia--Foreign relations--Turkey.
Russia--Foreign relations.
Turkey--Foreign relations--Russia.
Princeton subject headings:
Crimean Khanate--Foreign relations--Russia.
Crimean Tatars--History--16th century.
Russia--Foreign relations--Crimean Khanate.
Russia--Foreign relations--Turkey.
Turkey--Foreign relations--Russia.