Materials (metalworking) Workbook A manual for initial vocational education - (initial vocational education-metal "," the federal set of textbooks) (neck) / Materialovedenie (metallobrabotka) Rabochaya tetrad Uchebnoe posobie dlya nachalnogo professionalnogo obrazovaniya - ("Nachalnoe professionalnoe obrazovanie-Metalloobrabotka", "Federalnyy komplekt uchebnikov") (GRIF)