Columbia subject headings:
Owen, Wilfred, 1893-1918--In literature.
Sassoon, Siegfried, 1886-1967--In literature.
World War, 1914-1918--Drama.
Harvard subject headings:
Owen, Wilfred, 1893-1918, in fiction, drama, poetry, etc.
Owen, Wilfred, 1893-1918--Drama.
Poets--Drama
Sassoon, Siegfried, 1886-1967, in fiction, drama, poetry, etc.
Sassoon, Siegfried, 1886-1967--Drama.
Soldiers--Drama
World War, 1914-1918--Drama
Princeton subject headings:
Drama.
Owen, Wilfred, 1893-1918--Drama.
Sassoon, Siegfried, 1886-1967--Drama.
World War, 1914-1918--Drama.