TY  - GEN
AU  - Lownsborough,Roger
AU  - Calcutt, D.,
TI  - Electronic aids to navigation : radar and ARPA
SN  - 0340592583 (pbk) :
AV  - VK560 
U1  - 623.8933 
PY  - 1993///
CY  - London
PB  - Edward Arnold
KW  - Navigation
ER  -