Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.