Beam Trawling [Texto fotocopiado] : a study on the resistence of a beam trawl and measurement of the forces acting upon the rigging ; Proj. 6 : Measurement of forces acting on different parts of the beam trawl gear when fishing
by E. J. de Boer
Inglês
[S.l.] : [19--?], [s.n.]
[3], 16 p. : il.; 30 cm + figuras desdobr.