Columbia subject headings:
Theater--Switzerland--Basel--History--20th century.
Harvard subject headings:
Artists--Switzerland--Biography.
Iselin-Haeger, Gustava, 1878-1962.
Theater--Switzerland--Basel--Caricatures and cartoons.
Theater--Switzerland--Basel--History--20th century.
Princeton subject headings:
Basler Stadttheater--History--20th century.
Basler Studententheater--History--20th century.
Theater--Switzerland--Basel--History--20th century.