APA Alıntı

National productivity council. (1965). Refractories industry in USA, Britain and West Germany. National productivity council.

Chicago Stili Alıntı

National productivity council. Refractories Industry in USA, Britain and West Germany. New Delhi: National productivity council, 1965.

MLA Alıntı

National productivity council. Refractories Industry in USA, Britain and West Germany. National productivity council, 1965.