APA Citatie

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

Chicago Style citaat

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

MLA citatie

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

Let op: Deze citaties zijn niet altijd 100% accuraat.