Manual of operating instructions for the sinker rock drill, Model ПМ-508
Т27 Г-6/24 английский/Manual of operating instructions for the sinker rock drill : Model ПМ-508 / V/o "Machinoexport".Manual of operating instructions for the sinker rock drill : Model ПМ-508 / V/o "Machinoexport".Manual of operating instructions for the sinker rock drill : Model ПМ-508.M./Vneshtorgizdat/, [1956] ( ). - Vneshtorgizdat, [1956]. - 20 с., 1 л. черт. : черт. ; 22 см см.Manual of operating instructions for the sinker rock drill : Model ПМ-508. M., [1956] .Тг-116/"Machinoexport", v/o /