Columbia subject headings:
Austria--Foreign relations--Turkey.
Refugees--Turkey--History--19th century.
Soviet Union--Foreign relations--Turkey.
Turkey--Foreign relations--Austria.
Turkey--Foreign relations--Soviet Union.
Turkey--History--1829-1878.
Harvard subject headings:
Austria--Foreign relations--Turkey.
Refugees--Turkey--History--19th century.
Russia--Foreign relations--Turkey.
Turkey--Foreign relations--Austria.
Turkey--Foreign relations--Russia.
Turkey--History--1829-1878.
Princeton subject headings:
Austria--Foreign relations--Turkey.
Refugees--Turkey--History--19th century.
Russia--Foreign relations--Turkey.
Turkey--Foreign relations--Austria.
Turkey--Foreign relations--Russia.
Turkey--History--1829-1878.