Columbia subject headings:
Harvard subject headings:
German literature--Study and teaching--History--Congresses.
German philology--Study and teaching--History--Congresses.
Language arts--Correlation with content subjects--History--18th century--Congresses.
Language arts--Correlation with content subjects--History--19th century--Congresses.
Language arts--Correlation with content subjects--History--20th century--Congresses.
Princeton subject headings:
German literature--Study and teaching--History--Congresses.
German philology--Study and teaching--History--Congresses.
Language arts--Correlation with content subjects--History--18th century--Congresses.
Language arts--Correlation with content subjects--History--19th century--Congresses.
Language arts--Correlation with content subjects--History--20th century--Congresses.