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British tugs (including ocean tugs based on nearer continental ports | Bok | s629.12(083.8)(41) C Chesterton, D. Ridley / - London : Ian Allan, 1965. - 39 s. - Språk: Engelsk | Chesterton, D. Ridley | 1965 |
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European tug fleets | Bok | s629.12(083.8)(4) G Gaston, M.J. / - Deal, Kent : Marinart, 1975. - 64s. - Språk: Engelsk | Gaston, M.J. | 1975 |
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European tug fleets | Bok | s629.12(083.8)(4) G Gaston, M.J. / - Sandwich, Kent : Marinart, 1977. - 64s. - Språk: Engelsk | Gaston, M.J. | 1977 |
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Norskbygde slepebåter for tysk tjeneste | Analytt | q386(091)(05) S Jung, Dieter / I: Skipet. - 24.årgang, 1998 - Bønes, 1998. - s.37-38, 51 | Jung, Dieter | 1998 |
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Tugs : 3000 hp and over | Bok | s629.12(083.8) E Eijk, J. van, red. / - Hoofddorp, 1982. - upag. - Språk: Engelsk | Eijk, J. van, red. | 1982 |
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Tugs and offshore supply vessels 2006/07 (Baltic and Scandinavia) | Bok | 629.124.2(083.8) D Dodds, James / - Bristol : Bernard McCall, 2005. - 112 s. - Språk: Engelsk | Dodds, James | 2005 |