Columbia subject headings:
Ethnic costume--Europe--History--Congresses.
Ethnic costume--Germany--History--Congresses.
Sorbs--Clothing--Europe--Congresses.
Sorbs--Clothing--Germany--Congresses.
Harvard subject headings:
Ethnic costume--Europe--History--Congresses.
Ethnic costume--Germany--History--Congresses.
Sorbs--Clothing--Europe--Congresses.
Sorbs--Clothing--Germany--Congresses.
Princeton subject headings:
Ethnic costume--Europe--History--Congresses.
Ethnic costume--Germany--History--Congresses.
Sorbs--Clothing--Europe--Congresses.
Sorbs--Clothing--Germany--Congresses.