| by Valentiner, Max (The terror of the seas) Meine U-Boot-Abenteuer 1931, Amalthea-Verlag, Zürich 327 pages, 25 illustrations |
Translations of this title include:
| by Valentiner, Max (The terror of the seas) Mes aventures en sous-marin, 1914-1918 1931, Payot, Paris 252 pages | |
| by Valentiner, Max (The terror of the seas) 1931, Treves, Milano 278 pages, b&w photos | |
|