Vom Original zum Modell, Uboottyp XXIII

By Köhl, Fritz and Rössler, Eberhard
(From original to scale model: Type XXIII U-boat)
1993, Bernard & Graefe Verlag, Koblenz
ISBN 3763760075
88 pages, 150 colour and b/w photos, 30 plans and drawings
book is in German language

Descripton: A good source about the type XXIII with a lot of detailed photos and drawings.