German U-Boat Type XXI

By Breyer, Siegfried
1999, Schiffer Military/Aviation History, Atglen
ISBN 0764307878
Paperback, 49 pages, 64 b&w photos

From the uboat.net review: This slim but valuable volume provides a concise account of the development of the Type XXI U-boat. At the twilight of the war, the Kriegsmarine unleashed a new class of war-fighting submarine that differed greatly fro ...
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