| World War, 1914-1918 -- Russia. Matches 7 items |
| World War, 1914-1918 -- Science. Matches 1 item |
| World War, 1914-1918 -- Secret service -- Fiction. Matches 1 item |
| World War, 1914-1918 -- Secret service -- Great Britain. Matches 3 items |
| World War, 1914-1918 -- Secret service -- United States. Matches 1 item |
| World War, 1914-1918 -- Sermons. Matches 2 items |
| World War, 1914-1918 -- Social aspects. Matches 14 items |
| World War, 1914-1918 -- Social aspects -- Austria -- Vienna. Matches 1 item |
| World War, 1914-1918 -- Social aspects -- England. Matches 1 item |
| World War, 1914-1918 -- Social aspects -- France. Matches 1 item |