Echo sounding and sonar for fishing.
- London : FAO, c1980.
- xii, 104 pages : illustrations ; 23 cm.
FAO Fishing Manuals.
0852381107
Sonar in fishing.
Echo sounding in fishing.
639.2028 ECH
FAO Fishing Manuals.
0852381107
Sonar in fishing.
Echo sounding in fishing.
639.2028 ECH
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