Rules for the classification and construction of sea-going steel vessels, [Approved March 22, 1956]
английский/Rules for the classification and construction of sea-going steel vessels : [Approved March 22, 1956] / Register of shipping of the USSR.Rules for the classification and construction of sea-going steel vessels : [Approved March 22, 1956] / Register of shipping of the USSR.Rules for the classification and construction of sea-going steel vessels : [Approved March 22, 1956].L./"Marine transport"/, 1959 ( ). - "Marine transport", 1959. - 487 с. : черт. ; 26 см см.Rules for the classification and construction of sea-going steel vessels : [Approved March 22, 1956]. L., 1959 .Морские суда, металлические -- Классификация/nlr_sh1/Т23-190/USSR Register of shipping /