Grant, Robert M.  1917- <br/><br/>
U-boat intelligence, 1914-1918 / 
Robert M. Grant. 
 - London :  Putnam,  c1969. 
 - 192 p. :  8 plates, illus., charts, facsims., maps. ;  23 cm. 
<br/><br/>Bibliography: p. 191-192. 
<br/><br/><label>ISBN: </label>037000034X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Submarine warfare.<br/>World War, 1914-1918--Naval operations--Submarine.<br/>Military intelligence.
<br/><br/><label>Dewey Class. No.: </label>940.451  / GRU 1969