000			00594nam a2200205Ia 4500
008			131223s9999 xx 000 0 und d
040			_aISI KOLKATA
041			_aEnglish
082			_a639.22 _bC984
100			_aCushing D H
245			_aSome modern methods of fish detection _becho sounding, echo ranging and aerial scouting
260			_aRome _bFAO _c1952
300			_a27p.
500			_areprinted from FAO fisheries bulletin, v.5, nos.3-4, 1952
650			_aAerial scouting
650			_aEcho Ranging
650			_aEcho sounding
650			_aSalt-water fisheries
942			_cBK
999			_c32347 _d32347