Columbia subject headings:
Civilization, Western--Islamic influences--Congresses.
Immigrants--Europe--History--20th century--Congresses.
Islam--Europe--History--20th century--Congresses.
Muslims--Europe--Congresses.
Harvard subject headings:
Civilization, Western--Islamic influences--Congresses.
Immigrants--Europe--History--20th century--Congresses.
Islam--Europe--History--20th century--Congresses.
Muslims--Europe--Congresses.
Princeton subject headings:
Civilization, Western--Islamic influences--Congresses.
Immigrants--Europe--History--20th century--Congresses.
Islam--Europe--History--20th century--Congresses.
Muslims--Europe--Congresses.