United Nations Industrial Development Organization. Sectoral Studies Branch. (1985). The Petrochemical industry: The sector in figures. United Nations Industrial Development Organization. Sectoral Studies Branch. Division for Industrial Studies.
Citación estilo ChicagoUnited Nations Industrial Development Organization. Sectoral Studies Branch. The Petrochemical Industry: The Sector in Figures. [Vienna, Austria]: United Nations Industrial Development Organization. Sectoral Studies Branch. Division for Industrial Studies, 1985.
Cita MLAUnited Nations Industrial Development Organization. Sectoral Studies Branch. The Petrochemical Industry: The Sector in Figures. [Vienna, Austria]: United Nations Industrial Development Organization. Sectoral Studies Branch. Division for Industrial Studies, 1985.