Roskill, Stephen Wentworth. <br/><br/>
The war at sea, 1939-1945  / 
S. W. Roskill. 
 - London :  H. M. Stationery Off.,  1954- 
 -  ill., ports., maps (part fold., part col.) ;  25 cm. 
 - History of the Second World War ; United Kingdom militay series. .
<br/><br/> CONTENTS.- v.1. The defensive v.2. The period of balance. v.3. pts. I & II The offensive 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War,--Naval operations, British.--1939-1945
<br/><br/><label>Dewey Class. No.: </label>940.54