APA

Al-Sayyari N. A., Saudi Basic Industries Corporation, World Petroleum Congress (15th. : 1997 : Beijing) & Saudi Basic Industries Corporation.An overview of the Saudi Petrochemical Industry. : .

Chicago

Al-Sayyari Nasser A, Saudi Basic Industries Corporation, World Petroleum Congress (15th. : 1997 : Beijing) and Saudi Basic Industries Corporation.An overview of the Saudi Petrochemical Industry. : .

Harvard

Al-Sayyari N. A., Saudi Basic Industries Corporation, World Petroleum Congress (15th. : 1997 : Beijing) and Saudi Basic Industries Corporation.An overview of the Saudi Petrochemical Industry. : .

MLA

Al-Sayyari Nasser A, Saudi Basic Industries Corporation, World Petroleum Congress (15th. : 1997 : Beijing) and Saudi Basic Industries Corporation.: . .