Ruge, Friedrich <br/><br/>
Sea warfare 1939-1945 :  a German view point / 
Friedrich Ruge ; translated by M. G. Saunders 
 - London :  Cassell ,  1957 
 - xiv, 337 p. :  ill, ports ;  21 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War, 1939-1945--Naval operations