Columbia subject headings:
Bartels, Albert.
World War, 1914-1918--Morocco.
World War, 1914-1918--Personal narratives, German.
Harvard subject headings:
Bartels, Albert.
World War, 1914-1918--Morocco.
World War, 1914-1918--Personal narratives, German
Princeton subject headings:
World War, 1914-1918--Morocco.
World War, 1914-1918--Personal narratives, German.