National productivity council. (1965). Refractories industry in USA, Britain and West Germany. National productivity council.
Chicago-стиль цитированияNational productivity council. Refractories Industry in USA, Britain and West Germany. New Delhi: National productivity council, 1965.
MLA-цитированиеNational productivity council. Refractories Industry in USA, Britain and West Germany. National productivity council, 1965.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.