Doughty, Martin,  1948- <br/><br/>
Merchant shipping and war :  a study in defence planning in twentieth-century Britain / 
Martin Doughty. 
 - London :  Royal Historical Society,  1982. 
 - ix,218p. 
 - Royal Historical Society studies in history ;  no.31 .
 - Royal Historical Society studies in history ;  no.31 .
<br/><br/><label>ISBN: </label>0901050830 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War, 1939-1945--Transportation.<br/>Freight and freightage--Planning--History--Great Britain--20th century.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Great Britain--Commerce--History.