The U-boat : the evolution and technical history of German submarines
It's the enthusiast's bible of U-boat history and development, with absolutely unequalled detail and technical information. Displaying photographic coverage second to none, it has a wealth of submarine plans and profiles that illustrate every aspect of design and operation. Track the constant improvements implemented from world war to world war and beyond: the single-drive models, small and midget versions, move to high submerged speed, change to Type XXI and XXIII constructions, and production in the twilight of Nazi defeat
Print Book, English, 2001
Cassell ; Sterling Pub. [distributor], London, New York, 2001