Cita APA

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

Chicago Style Citation

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

Cita MLA

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

Atenció: Aquestes cites poden no estar 100% correctes.