Columbia subject headings:
Berlin (Germany)--Social life and customs--Caricatures and cartoons.
German wit and humor, Pictorial.
Zille, Heinrich, 1858-1929.
Harvard subject headings:
Berlin (Germany)--Social life and customs--Caricatures and cartoons.
German wit and humor, Pictorial.
Zille, Heinrich, 1858-1929.
Princeton subject headings: