Schaeffer, H. <br/><br/>
U-boat 977. 
Introd. by Nicholas Monsarrat. 
 - [1st American ed.] 
 - New York,  Norton  [1953, c1952] 
 - 260 p.  22 cm. 
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War, 1939-1945--Naval operations--Submarine.
<br/><br/><label>Dewey Class. No.: </label>359.4  / SCH