Columbia subject headings:
Lebanon--Foreign relations--Turkey.
Orontes River.
Syria--Foreign relations--Turkey.
Turkey--Foreign relations--Lebanon.
Turkey--Foreign relations--Syria.
Harvard subject headings:
Lebanon--Foreign relations--Turkey.
Orontes River.
Syria--Foreign relations--Turkey.
Turkey--Foreign relations--Lebanon.
Turkey--Foreign relations--Syria.
Princeton subject headings:
Lebanon--Foreign relations--Turkey.
Orontes River (Syria)
Syria--Foreign relations--Turkey.
Turkey--Foreign relations--Lebanon.
Turkey--Foreign relations--Syria.