Columbia subject headings:
Harvard subject headings:
Yezidis--History--Congresses.
Yezidis--Middle East--History--Congresses.
Yezidis--Middle East--Social conditions--Congresses.
Yezidis--Migrations--Congresses.
Princeton subject headings:
Yezidis--History--Congresses.
Yezidis--Middle East--History--Congresses.
Yezidis--Middle East--Social conditions--Congresses.
Yezidis--Migrations--Congresses.