Columbia subject headings:
Harvard subject headings:
Serbia--History, Military--20th century--Pictorial works.
World War, 1914-1918--Serbia--Archival resources--Pictorial works.
Princeton subject headings:
Serbia--History, Military--20th century--Pictorial works.
World War, 1914-1918--Serbia--Archival resources--Pictorial works.
World War, 1914-1918--Serbia--Pictorial works.