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| 035 | _a(NLR Aleph) 009111399 | ||
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| 100 | _a20090209d1987 |||y0rusy50 ca | ||
| 101 | 0 | _aeng | |
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_aCommercial echo sounder units for quantitative estimate of fich abundance _fBy Z. M. Berdichevsky & B. S. Godlevsky _gInternational symp. on fisheries acoustics, Seattle, Washington, USA, June 22-26, 1987; № 9. Sess. 11 |
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| 210 |
_a[Μ.] _d1987 |
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_a6 л. _cил. _d29 см |
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| 300 | _aБез тит. л. и обл. | ||
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_aРыболовство _xРазведывательная работа _xПрименение эхолотов _2nlr_sh1 |
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_aП722.11 _2rubbk |
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_9z02790 _aBerdičevskij _bZ. M. _gZinovij Morducheevič _4070 |
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_9z03790 _aGodlevskij _bB. S. _4070 |
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_aInternational symposium on fisheries acoustics _eSeattle, Wash. _f1987 _4000 |
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_9z02700 _aBerdichevsky _bZ. M. _4070 |
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_9z03701 _aGodlevsky _bB. S. _4070 |
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_aRU _bNLR _c20090209 |
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_aRU _bNLR _gPSBO |
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_aNLR _jС91 Д-8/13 |
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