Columbia subject headings:
Harvard subject headings:
Egypt--Foreign relations--Iraq--Congresses.
Egypt--Foreign relations--Syria--Congresses.
Iraq--Foreign relations--Egypt--Congresses.
Iraq--Foreign relations--Syria--Congresses.
Syria--Foreign relations--Egypt--Congresses.
Syria--Foreign relations--Iraq--Congresses.
Princeton subject headings:
Egypt--Foreign relations--Iraq.
Egypt--Foreign relations--Syria.
Iraq--Foreign relations--Egypt.
Iraq--Foreign relations--Syria.
Syria--Foreign relations--Egypt.
Syria--Foreign relations--Iraq.