TY  - BOOK
TI  - The sonar and radar : : how does it work ?
T2  - My ICT data bank series
SN  - 9831502280
U1  - 621.3895 23
PY  - 2004///
CY  - Kuala Lumpur : 
PB  - Arus Intelek , 
KW  - Sonar
ER  -