TY  - GEN
AU  - 
TI  - Fish Finding With Sonar
U1  - 639.2015345 
PY  - 1965///
CY  - Oslo
PB  - Simonsen Radio A S
KW  - Sonar
KW  - Fish-Finding
KW  - Acoustics
KW  - Ultrasonic Devices
ER  -