| by Valentiner, Max (300000 tons sunk!) Meine U-Boots-Fahrten 1917, Ullstein-Verlag, Berlin 154 pages |
Translations of this title include:
| by Valentiner, Max (300000 tons sunk!) Los cruceros de mi submarino 1918, Carl Seither, Barcelona 128 pages | |
| by Valentiner, Max (300000 tons sunk) 1917, W. ten Have, Amsterdam 160 pages | |
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