TY  - BOOK
AU  - Terraine,John
TI  - Business in great waters: the U-boat wars : 1916-1945 
SN  - 0850527600
PY  - 1989///
CY  - London
PB  - Leo Cooper
KW  - Germany
KW  - Kriegsmarine
KW  - Submarine boats
KW  - World War, 1939-1945
KW  - Naval operations
KW  - Submarine
KW  - World War, 1914-1918
KW  - Naval operations, German
ER  -