Offley, Edward. <br/><br/>
Turning the tide :  how a small band of Allied sailors defeated the U-boats and won the Battle of the Atlantic / 
Ed Offley. 
 - New York :  Basic Books,  c2011. 
 - xxviii, 478 p. ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 452-459) and index. 
<br/><br/>Introduction : a fight in the dark -- A city at war -- The adversaries -- Movement to contact -- The U-boat -- The sighting -- The battle of St. Patrick's Day -- The crisis -- The allies fight back -- The first skirmishes -- The Melee at 55 North 42 West -- Battle in the fog -- Defeat. 
<br/><br/><label>ISBN: </label>9780465013975 (hardcover) 9780465023448 (e-book) 
<br/><br/><label>LCCN: </label>2010048097 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War, 1939-1945--Campaigns--Atlantic Ocean.<br/>World War, 1939-1945--Naval operations--Submarine.
<br/><br/><label>LC Class. No.: </label>D770  / .O36 2011 
<br/><br/><label>Dewey Class. No.: </label>940.54/293