APA Citatie

United nations industrial development organization Vienna. (1973). The petrochemical industry. New York: United Nation.

Chicago Style citaat

United nations industrial development organization Vienna. The Petrochemical Industry. New York: United Nation, 1973.

MLA citatie

United nations industrial development organization Vienna. The Petrochemical Industry. New York: United Nation, 1973.

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