Fish- finding with sonar

समान संसाधन

• Echo sounding and sonar for fishing
  द्वारा: FAO
  प्रकाशित: (1980)
• Echo Sounding and Sonar for Fishing
  द्वारा: FAO
  प्रकाशित: (1980)
• The sonar of dolphins
  द्वारा: Au Whitlow, W L
  प्रकाशित: (1993)
• Sonar in fisheries
  द्वारा: Tucker, D G
• Sonar in fisheries
  द्वारा: Tucker, D G
  प्रकाशित: (1967)