The U-Boat war in the Atlantic 1939-1945. 

 - London :  HMSO,  1989. 
 - x. 151p. 
<br/><br/><label>ISBN: </label>0117726036 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Germany. Kriegsmarine --History.
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War, 1939-1945--Naval operations--Submarine.<br/>World War, 1939-1945--Naval operations, German.<br/>World War, 1939-1945--Atlantic Ocean.