Pile driver unit, Model C-254, Certificate and manual of maintenance and operation
английский/Pile driver unit : Model C-254 : Certificate and manual of maintenance and operation / V/o "Machinoexport".Pile driver unit : Model C-254 : Certificate and manual of maintenance and operation / V/o "Machinoexport".Pile driver unit : Model C-254 : Certificate and manual of maintenance and operation.M./Vneshtorgizdat/, [195?] ( ). - Vneshtorgizdat, [195?]. - 24 с. : черт. ; 22 см см.Pile driver unit : Model C-254 : Certificate and manual of maintenance and operation. M., [195?] .Тс-422/"Machinoexport", v/o /